1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
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|
52 | # if HAVE_CLOCK_SYSCALL |
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|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
119 | # else |
133 | # else |
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
121 | # endif |
135 | # endif |
122 | # endif |
136 | # endif |
123 | |
137 | |
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138 | # ifndef EV_USE_SIGNALFD |
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139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD 1 |
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141 | # else |
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142 | # define EV_USE_SIGNALFD 0 |
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143 | # endif |
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144 | # endif |
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145 | |
124 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
125 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
126 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
127 | # else |
149 | # else |
128 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
129 | # endif |
151 | # endif |
130 | # endif |
152 | # endif |
131 | |
153 | |
132 | #endif |
154 | #endif |
133 | |
155 | |
134 | #include <math.h> |
156 | #include <math.h> |
135 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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|
158 | #include <string.h> |
136 | #include <fcntl.h> |
159 | #include <fcntl.h> |
137 | #include <stddef.h> |
160 | #include <stddef.h> |
138 | |
161 | |
139 | #include <stdio.h> |
162 | #include <stdio.h> |
140 | |
163 | |
… | |
… | |
154 | #ifndef _WIN32 |
177 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
178 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
179 | # include <sys/wait.h> |
157 | # include <unistd.h> |
180 | # include <unistd.h> |
158 | #else |
181 | #else |
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|
182 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
183 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
184 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
187 | # endif |
164 | #endif |
188 | #endif |
165 | |
189 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
191 | |
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|
192 | /* try to deduce the maximum number of signals on this platform */ |
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193 | #if defined (EV_NSIG) |
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194 | /* use what's provided */ |
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195 | #elif defined (NSIG) |
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196 | # define EV_NSIG (NSIG) |
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197 | #elif defined(_NSIG) |
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198 | # define EV_NSIG (_NSIG) |
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199 | #elif defined (SIGMAX) |
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200 | # define EV_NSIG (SIGMAX+1) |
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201 | #elif defined (SIG_MAX) |
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202 | # define EV_NSIG (SIG_MAX+1) |
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203 | #elif defined (_SIG_MAX) |
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204 | # define EV_NSIG (_SIG_MAX+1) |
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205 | #elif defined (MAXSIG) |
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206 | # define EV_NSIG (MAXSIG+1) |
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207 | #elif defined (MAX_SIG) |
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208 | # define EV_NSIG (MAX_SIG+1) |
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209 | #elif defined (SIGARRAYSIZE) |
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210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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211 | #elif defined (_sys_nsig) |
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212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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213 | #else |
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214 | # error "unable to find value for NSIG, please report" |
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215 | /* to make it compile regardless, just remove the above line */ |
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216 | # define EV_NSIG 65 |
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217 | #endif |
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218 | |
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219 | #ifndef EV_USE_CLOCK_SYSCALL |
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220 | # if __linux && __GLIBC__ >= 2 |
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221 | # define EV_USE_CLOCK_SYSCALL 1 |
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222 | # else |
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223 | # define EV_USE_CLOCK_SYSCALL 0 |
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224 | # endif |
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225 | #endif |
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226 | |
168 | #ifndef EV_USE_MONOTONIC |
227 | #ifndef EV_USE_MONOTONIC |
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228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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229 | # define EV_USE_MONOTONIC 1 |
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230 | # else |
169 | # define EV_USE_MONOTONIC 0 |
231 | # define EV_USE_MONOTONIC 0 |
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232 | # endif |
170 | #endif |
233 | #endif |
171 | |
234 | |
172 | #ifndef EV_USE_REALTIME |
235 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
237 | #endif |
175 | |
238 | |
176 | #ifndef EV_USE_NANOSLEEP |
239 | #ifndef EV_USE_NANOSLEEP |
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240 | # if _POSIX_C_SOURCE >= 199309L |
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241 | # define EV_USE_NANOSLEEP 1 |
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242 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
243 | # define EV_USE_NANOSLEEP 0 |
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|
244 | # endif |
178 | #endif |
245 | #endif |
179 | |
246 | |
180 | #ifndef EV_USE_SELECT |
247 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
248 | # define EV_USE_SELECT 1 |
182 | #endif |
249 | #endif |
… | |
… | |
235 | # else |
302 | # else |
236 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
237 | # endif |
304 | # endif |
238 | #endif |
305 | #endif |
239 | |
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
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308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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309 | # define EV_USE_SIGNALFD 1 |
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310 | # else |
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311 | # define EV_USE_SIGNALFD 0 |
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312 | # endif |
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313 | #endif |
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314 | |
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315 | #if 0 /* debugging */ |
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316 | # define EV_VERIFY 3 |
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317 | # define EV_USE_4HEAP 1 |
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318 | # define EV_HEAP_CACHE_AT 1 |
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319 | #endif |
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320 | |
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321 | #ifndef EV_VERIFY |
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322 | # define EV_VERIFY !EV_MINIMAL |
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323 | #endif |
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324 | |
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325 | #ifndef EV_USE_4HEAP |
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326 | # define EV_USE_4HEAP !EV_MINIMAL |
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327 | #endif |
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328 | |
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329 | #ifndef EV_HEAP_CACHE_AT |
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330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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331 | #endif |
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332 | |
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333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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334 | /* which makes programs even slower. might work on other unices, too. */ |
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335 | #if EV_USE_CLOCK_SYSCALL |
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336 | # include <syscall.h> |
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337 | # ifdef SYS_clock_gettime |
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338 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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339 | # undef EV_USE_MONOTONIC |
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340 | # define EV_USE_MONOTONIC 1 |
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341 | # else |
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342 | # undef EV_USE_CLOCK_SYSCALL |
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343 | # define EV_USE_CLOCK_SYSCALL 0 |
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344 | # endif |
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345 | #endif |
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346 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
348 | |
242 | #ifndef CLOCK_MONOTONIC |
349 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
350 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
351 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
366 | # include <sys/select.h> |
260 | # endif |
367 | # endif |
261 | #endif |
368 | #endif |
262 | |
369 | |
263 | #if EV_USE_INOTIFY |
370 | #if EV_USE_INOTIFY |
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371 | # include <sys/utsname.h> |
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372 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
373 | # include <sys/inotify.h> |
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374 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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375 | # ifndef IN_DONT_FOLLOW |
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376 | # undef EV_USE_INOTIFY |
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377 | # define EV_USE_INOTIFY 0 |
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378 | # endif |
265 | #endif |
379 | #endif |
266 | |
380 | |
267 | #if EV_SELECT_IS_WINSOCKET |
381 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
382 | # include <winsock.h> |
269 | #endif |
383 | #endif |
270 | |
384 | |
271 | #if EV_USE_EVENTFD |
385 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
387 | # include <stdint.h> |
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388 | # ifndef EFD_NONBLOCK |
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389 | # define EFD_NONBLOCK O_NONBLOCK |
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390 | # endif |
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391 | # ifndef EFD_CLOEXEC |
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392 | # ifdef O_CLOEXEC |
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393 | # define EFD_CLOEXEC O_CLOEXEC |
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394 | # else |
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395 | # define EFD_CLOEXEC 02000000 |
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396 | # endif |
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397 | # endif |
274 | # ifdef __cplusplus |
398 | # ifdef __cplusplus |
275 | extern "C" { |
399 | extern "C" { |
276 | # endif |
400 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
401 | int eventfd (unsigned int initval, int flags); |
278 | # ifdef __cplusplus |
402 | # ifdef __cplusplus |
279 | } |
403 | } |
280 | # endif |
404 | # endif |
281 | #endif |
405 | #endif |
282 | |
406 | |
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407 | #if EV_USE_SIGNALFD |
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408 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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409 | # include <stdint.h> |
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410 | # ifndef SFD_NONBLOCK |
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411 | # define SFD_NONBLOCK O_NONBLOCK |
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412 | # endif |
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413 | # ifndef SFD_CLOEXEC |
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414 | # ifdef O_CLOEXEC |
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415 | # define SFD_CLOEXEC O_CLOEXEC |
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416 | # else |
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417 | # define SFD_CLOEXEC 02000000 |
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418 | # endif |
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419 | # endif |
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420 | # ifdef __cplusplus |
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421 | extern "C" { |
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422 | # endif |
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423 | int signalfd (int fd, const sigset_t *mask, int flags); |
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424 | |
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425 | struct signalfd_siginfo |
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426 | { |
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427 | uint32_t ssi_signo; |
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428 | char pad[128 - sizeof (uint32_t)]; |
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429 | }; |
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430 | # ifdef __cplusplus |
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431 | } |
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432 | # endif |
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433 | #endif |
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434 | |
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435 | |
283 | /**/ |
436 | /**/ |
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437 | |
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438 | #if EV_VERIFY >= 3 |
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439 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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440 | #else |
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441 | # define EV_FREQUENT_CHECK do { } while (0) |
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442 | #endif |
284 | |
443 | |
285 | /* |
444 | /* |
286 | * This is used to avoid floating point rounding problems. |
445 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
446 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
447 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
292 | */ |
451 | */ |
293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
452 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
294 | |
453 | |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
454 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
455 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
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298 | |
456 | |
299 | #if __GNUC__ >= 4 |
457 | #if __GNUC__ >= 4 |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
301 | # define noinline __attribute__ ((noinline)) |
459 | # define noinline __attribute__ ((noinline)) |
302 | #else |
460 | #else |
… | |
… | |
315 | # define inline_speed static noinline |
473 | # define inline_speed static noinline |
316 | #else |
474 | #else |
317 | # define inline_speed static inline |
475 | # define inline_speed static inline |
318 | #endif |
476 | #endif |
319 | |
477 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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479 | |
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480 | #if EV_MINPRI == EV_MAXPRI |
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481 | # define ABSPRI(w) (((W)w), 0) |
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482 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
483 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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|
484 | #endif |
322 | |
485 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
486 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
487 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
488 | |
326 | typedef ev_watcher *W; |
489 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
490 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
491 | typedef ev_watcher_time *WT; |
329 | |
492 | |
330 | #if EV_USE_MONOTONIC |
493 | #define ev_active(w) ((W)(w))->active |
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494 | #define ev_at(w) ((WT)(w))->at |
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495 | |
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496 | #if EV_USE_REALTIME |
331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
497 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
332 | /* giving it a reasonably high chance of working on typical architetcures */ |
498 | /* giving it a reasonably high chance of working on typical architetcures */ |
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499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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500 | #endif |
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501 | |
|
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502 | #if EV_USE_MONOTONIC |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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|
504 | #endif |
|
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505 | |
|
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506 | #ifndef EV_FD_TO_WIN32_HANDLE |
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507 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
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508 | #endif |
|
|
509 | #ifndef EV_WIN32_HANDLE_TO_FD |
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|
510 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
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511 | #endif |
|
|
512 | #ifndef EV_WIN32_CLOSE_FD |
|
|
513 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
334 | #endif |
514 | #endif |
335 | |
515 | |
336 | #ifdef _WIN32 |
516 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
517 | # include "ev_win32.c" |
338 | #endif |
518 | #endif |
… | |
… | |
346 | { |
526 | { |
347 | syserr_cb = cb; |
527 | syserr_cb = cb; |
348 | } |
528 | } |
349 | |
529 | |
350 | static void noinline |
530 | static void noinline |
351 | syserr (const char *msg) |
531 | ev_syserr (const char *msg) |
352 | { |
532 | { |
353 | if (!msg) |
533 | if (!msg) |
354 | msg = "(libev) system error"; |
534 | msg = "(libev) system error"; |
355 | |
535 | |
356 | if (syserr_cb) |
536 | if (syserr_cb) |
… | |
… | |
402 | #define ev_malloc(size) ev_realloc (0, (size)) |
582 | #define ev_malloc(size) ev_realloc (0, (size)) |
403 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
583 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
404 | |
584 | |
405 | /*****************************************************************************/ |
585 | /*****************************************************************************/ |
406 | |
586 | |
|
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587 | /* set in reify when reification needed */ |
|
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588 | #define EV_ANFD_REIFY 1 |
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589 | |
|
|
590 | /* file descriptor info structure */ |
407 | typedef struct |
591 | typedef struct |
408 | { |
592 | { |
409 | WL head; |
593 | WL head; |
410 | unsigned char events; |
594 | unsigned char events; /* the events watched for */ |
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|
595 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
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596 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
411 | unsigned char reify; |
597 | unsigned char unused; |
|
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598 | #if EV_USE_EPOLL |
|
|
599 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
600 | #endif |
412 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
413 | SOCKET handle; |
602 | SOCKET handle; |
414 | #endif |
603 | #endif |
415 | } ANFD; |
604 | } ANFD; |
416 | |
605 | |
|
|
606 | /* stores the pending event set for a given watcher */ |
417 | typedef struct |
607 | typedef struct |
418 | { |
608 | { |
419 | W w; |
609 | W w; |
420 | int events; |
610 | int events; /* the pending event set for the given watcher */ |
421 | } ANPENDING; |
611 | } ANPENDING; |
422 | |
612 | |
423 | #if EV_USE_INOTIFY |
613 | #if EV_USE_INOTIFY |
|
|
614 | /* hash table entry per inotify-id */ |
424 | typedef struct |
615 | typedef struct |
425 | { |
616 | { |
426 | WL head; |
617 | WL head; |
427 | } ANFS; |
618 | } ANFS; |
|
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619 | #endif |
|
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620 | |
|
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621 | /* Heap Entry */ |
|
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622 | #if EV_HEAP_CACHE_AT |
|
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623 | /* a heap element */ |
|
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624 | typedef struct { |
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625 | ev_tstamp at; |
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626 | WT w; |
|
|
627 | } ANHE; |
|
|
628 | |
|
|
629 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
630 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
631 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
632 | #else |
|
|
633 | /* a heap element */ |
|
|
634 | typedef WT ANHE; |
|
|
635 | |
|
|
636 | #define ANHE_w(he) (he) |
|
|
637 | #define ANHE_at(he) (he)->at |
|
|
638 | #define ANHE_at_cache(he) |
428 | #endif |
639 | #endif |
429 | |
640 | |
430 | #if EV_MULTIPLICITY |
641 | #if EV_MULTIPLICITY |
431 | |
642 | |
432 | struct ev_loop |
643 | struct ev_loop |
… | |
… | |
451 | |
662 | |
452 | static int ev_default_loop_ptr; |
663 | static int ev_default_loop_ptr; |
453 | |
664 | |
454 | #endif |
665 | #endif |
455 | |
666 | |
|
|
667 | #if EV_MINIMAL < 2 |
|
|
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
669 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
671 | #else |
|
|
672 | # define EV_RELEASE_CB (void)0 |
|
|
673 | # define EV_ACQUIRE_CB (void)0 |
|
|
674 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
675 | #endif |
|
|
676 | |
|
|
677 | #define EVUNLOOP_RECURSE 0x80 |
|
|
678 | |
456 | /*****************************************************************************/ |
679 | /*****************************************************************************/ |
457 | |
680 | |
|
|
681 | #ifndef EV_HAVE_EV_TIME |
458 | ev_tstamp |
682 | ev_tstamp |
459 | ev_time (void) |
683 | ev_time (void) |
460 | { |
684 | { |
461 | #if EV_USE_REALTIME |
685 | #if EV_USE_REALTIME |
|
|
686 | if (expect_true (have_realtime)) |
|
|
687 | { |
462 | struct timespec ts; |
688 | struct timespec ts; |
463 | clock_gettime (CLOCK_REALTIME, &ts); |
689 | clock_gettime (CLOCK_REALTIME, &ts); |
464 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
690 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
465 | #else |
691 | } |
|
|
692 | #endif |
|
|
693 | |
466 | struct timeval tv; |
694 | struct timeval tv; |
467 | gettimeofday (&tv, 0); |
695 | gettimeofday (&tv, 0); |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
696 | return tv.tv_sec + tv.tv_usec * 1e-6; |
469 | #endif |
|
|
470 | } |
697 | } |
|
|
698 | #endif |
471 | |
699 | |
472 | ev_tstamp inline_size |
700 | inline_size ev_tstamp |
473 | get_clock (void) |
701 | get_clock (void) |
474 | { |
702 | { |
475 | #if EV_USE_MONOTONIC |
703 | #if EV_USE_MONOTONIC |
476 | if (expect_true (have_monotonic)) |
704 | if (expect_true (have_monotonic)) |
477 | { |
705 | { |
… | |
… | |
510 | struct timeval tv; |
738 | struct timeval tv; |
511 | |
739 | |
512 | tv.tv_sec = (time_t)delay; |
740 | tv.tv_sec = (time_t)delay; |
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
741 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
514 | |
742 | |
|
|
743 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
745 | /* by older ones */ |
515 | select (0, 0, 0, 0, &tv); |
746 | select (0, 0, 0, 0, &tv); |
516 | #endif |
747 | #endif |
517 | } |
748 | } |
518 | } |
749 | } |
519 | |
750 | |
520 | /*****************************************************************************/ |
751 | /*****************************************************************************/ |
521 | |
752 | |
522 | int inline_size |
753 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
754 | |
|
|
755 | /* find a suitable new size for the given array, */ |
|
|
756 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
757 | inline_size int |
523 | array_nextsize (int elem, int cur, int cnt) |
758 | array_nextsize (int elem, int cur, int cnt) |
524 | { |
759 | { |
525 | int ncur = cur + 1; |
760 | int ncur = cur + 1; |
526 | |
761 | |
527 | do |
762 | do |
528 | ncur <<= 1; |
763 | ncur <<= 1; |
529 | while (cnt > ncur); |
764 | while (cnt > ncur); |
530 | |
765 | |
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
766 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
532 | if (elem * ncur > 4096) |
767 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
533 | { |
768 | { |
534 | ncur *= elem; |
769 | ncur *= elem; |
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
770 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
536 | ncur = ncur - sizeof (void *) * 4; |
771 | ncur = ncur - sizeof (void *) * 4; |
537 | ncur /= elem; |
772 | ncur /= elem; |
538 | } |
773 | } |
539 | |
774 | |
540 | return ncur; |
775 | return ncur; |
… | |
… | |
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
779 | array_realloc (int elem, void *base, int *cur, int cnt) |
545 | { |
780 | { |
546 | *cur = array_nextsize (elem, *cur, cnt); |
781 | *cur = array_nextsize (elem, *cur, cnt); |
547 | return ev_realloc (base, elem * *cur); |
782 | return ev_realloc (base, elem * *cur); |
548 | } |
783 | } |
|
|
784 | |
|
|
785 | #define array_init_zero(base,count) \ |
|
|
786 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
549 | |
787 | |
550 | #define array_needsize(type,base,cur,cnt,init) \ |
788 | #define array_needsize(type,base,cur,cnt,init) \ |
551 | if (expect_false ((cnt) > (cur))) \ |
789 | if (expect_false ((cnt) > (cur))) \ |
552 | { \ |
790 | { \ |
553 | int ocur_ = (cur); \ |
791 | int ocur_ = (cur); \ |
… | |
… | |
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
803 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
566 | } |
804 | } |
567 | #endif |
805 | #endif |
568 | |
806 | |
569 | #define array_free(stem, idx) \ |
807 | #define array_free(stem, idx) \ |
570 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
808 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
571 | |
809 | |
572 | /*****************************************************************************/ |
810 | /*****************************************************************************/ |
|
|
811 | |
|
|
812 | /* dummy callback for pending events */ |
|
|
813 | static void noinline |
|
|
814 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
815 | { |
|
|
816 | } |
573 | |
817 | |
574 | void noinline |
818 | void noinline |
575 | ev_feed_event (EV_P_ void *w, int revents) |
819 | ev_feed_event (EV_P_ void *w, int revents) |
576 | { |
820 | { |
577 | W w_ = (W)w; |
821 | W w_ = (W)w; |
… | |
… | |
586 | pendings [pri][w_->pending - 1].w = w_; |
830 | pendings [pri][w_->pending - 1].w = w_; |
587 | pendings [pri][w_->pending - 1].events = revents; |
831 | pendings [pri][w_->pending - 1].events = revents; |
588 | } |
832 | } |
589 | } |
833 | } |
590 | |
834 | |
591 | void inline_speed |
835 | inline_speed void |
|
|
836 | feed_reverse (EV_P_ W w) |
|
|
837 | { |
|
|
838 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
839 | rfeeds [rfeedcnt++] = w; |
|
|
840 | } |
|
|
841 | |
|
|
842 | inline_size void |
|
|
843 | feed_reverse_done (EV_P_ int revents) |
|
|
844 | { |
|
|
845 | do |
|
|
846 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
847 | while (rfeedcnt); |
|
|
848 | } |
|
|
849 | |
|
|
850 | inline_speed void |
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
851 | queue_events (EV_P_ W *events, int eventcnt, int type) |
593 | { |
852 | { |
594 | int i; |
853 | int i; |
595 | |
854 | |
596 | for (i = 0; i < eventcnt; ++i) |
855 | for (i = 0; i < eventcnt; ++i) |
597 | ev_feed_event (EV_A_ events [i], type); |
856 | ev_feed_event (EV_A_ events [i], type); |
598 | } |
857 | } |
599 | |
858 | |
600 | /*****************************************************************************/ |
859 | /*****************************************************************************/ |
601 | |
860 | |
602 | void inline_size |
861 | inline_speed void |
603 | anfds_init (ANFD *base, int count) |
|
|
604 | { |
|
|
605 | while (count--) |
|
|
606 | { |
|
|
607 | base->head = 0; |
|
|
608 | base->events = EV_NONE; |
|
|
609 | base->reify = 0; |
|
|
610 | |
|
|
611 | ++base; |
|
|
612 | } |
|
|
613 | } |
|
|
614 | |
|
|
615 | void inline_speed |
|
|
616 | fd_event (EV_P_ int fd, int revents) |
862 | fd_event_nc (EV_P_ int fd, int revents) |
617 | { |
863 | { |
618 | ANFD *anfd = anfds + fd; |
864 | ANFD *anfd = anfds + fd; |
619 | ev_io *w; |
865 | ev_io *w; |
620 | |
866 | |
621 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
625 | if (ev) |
871 | if (ev) |
626 | ev_feed_event (EV_A_ (W)w, ev); |
872 | ev_feed_event (EV_A_ (W)w, ev); |
627 | } |
873 | } |
628 | } |
874 | } |
629 | |
875 | |
|
|
876 | /* do not submit kernel events for fds that have reify set */ |
|
|
877 | /* because that means they changed while we were polling for new events */ |
|
|
878 | inline_speed void |
|
|
879 | fd_event (EV_P_ int fd, int revents) |
|
|
880 | { |
|
|
881 | ANFD *anfd = anfds + fd; |
|
|
882 | |
|
|
883 | if (expect_true (!anfd->reify)) |
|
|
884 | fd_event_nc (EV_A_ fd, revents); |
|
|
885 | } |
|
|
886 | |
630 | void |
887 | void |
631 | ev_feed_fd_event (EV_P_ int fd, int revents) |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
632 | { |
889 | { |
633 | if (fd >= 0 && fd < anfdmax) |
890 | if (fd >= 0 && fd < anfdmax) |
634 | fd_event (EV_A_ fd, revents); |
891 | fd_event_nc (EV_A_ fd, revents); |
635 | } |
892 | } |
636 | |
893 | |
637 | void inline_size |
894 | /* make sure the external fd watch events are in-sync */ |
|
|
895 | /* with the kernel/libev internal state */ |
|
|
896 | inline_size void |
638 | fd_reify (EV_P) |
897 | fd_reify (EV_P) |
639 | { |
898 | { |
640 | int i; |
899 | int i; |
641 | |
900 | |
642 | for (i = 0; i < fdchangecnt; ++i) |
901 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
651 | events |= (unsigned char)w->events; |
910 | events |= (unsigned char)w->events; |
652 | |
911 | |
653 | #if EV_SELECT_IS_WINSOCKET |
912 | #if EV_SELECT_IS_WINSOCKET |
654 | if (events) |
913 | if (events) |
655 | { |
914 | { |
656 | unsigned long argp; |
915 | unsigned long arg; |
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
659 | #else |
|
|
660 | anfd->handle = _get_osfhandle (fd); |
|
|
661 | #endif |
|
|
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
663 | } |
918 | } |
664 | #endif |
919 | #endif |
665 | |
920 | |
666 | { |
921 | { |
667 | unsigned char o_events = anfd->events; |
922 | unsigned char o_events = anfd->events; |
668 | unsigned char o_reify = anfd->reify; |
923 | unsigned char o_reify = anfd->reify; |
669 | |
924 | |
670 | anfd->reify = 0; |
925 | anfd->reify = 0; |
671 | anfd->events = events; |
926 | anfd->events = events; |
672 | |
927 | |
673 | if (o_events != events || o_reify & EV_IOFDSET) |
928 | if (o_events != events || o_reify & EV__IOFDSET) |
674 | backend_modify (EV_A_ fd, o_events, events); |
929 | backend_modify (EV_A_ fd, o_events, events); |
675 | } |
930 | } |
676 | } |
931 | } |
677 | |
932 | |
678 | fdchangecnt = 0; |
933 | fdchangecnt = 0; |
679 | } |
934 | } |
680 | |
935 | |
681 | void inline_size |
936 | /* something about the given fd changed */ |
|
|
937 | inline_size void |
682 | fd_change (EV_P_ int fd, int flags) |
938 | fd_change (EV_P_ int fd, int flags) |
683 | { |
939 | { |
684 | unsigned char reify = anfds [fd].reify; |
940 | unsigned char reify = anfds [fd].reify; |
685 | anfds [fd].reify |= flags; |
941 | anfds [fd].reify |= flags; |
686 | |
942 | |
… | |
… | |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
946 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
691 | fdchanges [fdchangecnt - 1] = fd; |
947 | fdchanges [fdchangecnt - 1] = fd; |
692 | } |
948 | } |
693 | } |
949 | } |
694 | |
950 | |
695 | void inline_speed |
951 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
952 | inline_speed void |
696 | fd_kill (EV_P_ int fd) |
953 | fd_kill (EV_P_ int fd) |
697 | { |
954 | { |
698 | ev_io *w; |
955 | ev_io *w; |
699 | |
956 | |
700 | while ((w = (ev_io *)anfds [fd].head)) |
957 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
702 | ev_io_stop (EV_A_ w); |
959 | ev_io_stop (EV_A_ w); |
703 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
704 | } |
961 | } |
705 | } |
962 | } |
706 | |
963 | |
707 | int inline_size |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
965 | inline_size int |
708 | fd_valid (int fd) |
966 | fd_valid (int fd) |
709 | { |
967 | { |
710 | #ifdef _WIN32 |
968 | #ifdef _WIN32 |
711 | return _get_osfhandle (fd) != -1; |
969 | return _get_osfhandle (fd) != -1; |
712 | #else |
970 | #else |
… | |
… | |
720 | { |
978 | { |
721 | int fd; |
979 | int fd; |
722 | |
980 | |
723 | for (fd = 0; fd < anfdmax; ++fd) |
981 | for (fd = 0; fd < anfdmax; ++fd) |
724 | if (anfds [fd].events) |
982 | if (anfds [fd].events) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
983 | if (!fd_valid (fd) && errno == EBADF) |
726 | fd_kill (EV_A_ fd); |
984 | fd_kill (EV_A_ fd); |
727 | } |
985 | } |
728 | |
986 | |
729 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
987 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
730 | static void noinline |
988 | static void noinline |
… | |
… | |
734 | |
992 | |
735 | for (fd = anfdmax; fd--; ) |
993 | for (fd = anfdmax; fd--; ) |
736 | if (anfds [fd].events) |
994 | if (anfds [fd].events) |
737 | { |
995 | { |
738 | fd_kill (EV_A_ fd); |
996 | fd_kill (EV_A_ fd); |
739 | return; |
997 | break; |
740 | } |
998 | } |
741 | } |
999 | } |
742 | |
1000 | |
743 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1001 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
744 | static void noinline |
1002 | static void noinline |
… | |
… | |
748 | |
1006 | |
749 | for (fd = 0; fd < anfdmax; ++fd) |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
750 | if (anfds [fd].events) |
1008 | if (anfds [fd].events) |
751 | { |
1009 | { |
752 | anfds [fd].events = 0; |
1010 | anfds [fd].events = 0; |
|
|
1011 | anfds [fd].emask = 0; |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
754 | } |
1013 | } |
755 | } |
1014 | } |
756 | |
1015 | |
757 | /*****************************************************************************/ |
1016 | /*****************************************************************************/ |
758 | |
1017 | |
759 | void inline_speed |
1018 | /* |
760 | upheap (WT *heap, int k) |
1019 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
761 | { |
1020 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
762 | WT w = heap [k]; |
1021 | * the branching factor of the d-tree. |
|
|
1022 | */ |
763 | |
1023 | |
764 | while (k) |
1024 | /* |
765 | { |
1025 | * at the moment we allow libev the luxury of two heaps, |
766 | int p = (k - 1) >> 1; |
1026 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1027 | * which is more cache-efficient. |
|
|
1028 | * the difference is about 5% with 50000+ watchers. |
|
|
1029 | */ |
|
|
1030 | #if EV_USE_4HEAP |
767 | |
1031 | |
768 | if (heap [p]->at <= w->at) |
1032 | #define DHEAP 4 |
|
|
1033 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1034 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1035 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1036 | |
|
|
1037 | /* away from the root */ |
|
|
1038 | inline_speed void |
|
|
1039 | downheap (ANHE *heap, int N, int k) |
|
|
1040 | { |
|
|
1041 | ANHE he = heap [k]; |
|
|
1042 | ANHE *E = heap + N + HEAP0; |
|
|
1043 | |
|
|
1044 | for (;;) |
|
|
1045 | { |
|
|
1046 | ev_tstamp minat; |
|
|
1047 | ANHE *minpos; |
|
|
1048 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1049 | |
|
|
1050 | /* find minimum child */ |
|
|
1051 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1052 | { |
|
|
1053 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1054 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1055 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1056 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1057 | } |
|
|
1058 | else if (pos < E) |
|
|
1059 | { |
|
|
1060 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1061 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1062 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1063 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1064 | } |
|
|
1065 | else |
769 | break; |
1066 | break; |
770 | |
1067 | |
|
|
1068 | if (ANHE_at (he) <= minat) |
|
|
1069 | break; |
|
|
1070 | |
|
|
1071 | heap [k] = *minpos; |
|
|
1072 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1073 | |
|
|
1074 | k = minpos - heap; |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | heap [k] = he; |
|
|
1078 | ev_active (ANHE_w (he)) = k; |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | #else /* 4HEAP */ |
|
|
1082 | |
|
|
1083 | #define HEAP0 1 |
|
|
1084 | #define HPARENT(k) ((k) >> 1) |
|
|
1085 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1086 | |
|
|
1087 | /* away from the root */ |
|
|
1088 | inline_speed void |
|
|
1089 | downheap (ANHE *heap, int N, int k) |
|
|
1090 | { |
|
|
1091 | ANHE he = heap [k]; |
|
|
1092 | |
|
|
1093 | for (;;) |
|
|
1094 | { |
|
|
1095 | int c = k << 1; |
|
|
1096 | |
|
|
1097 | if (c >= N + HEAP0) |
|
|
1098 | break; |
|
|
1099 | |
|
|
1100 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1101 | ? 1 : 0; |
|
|
1102 | |
|
|
1103 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1104 | break; |
|
|
1105 | |
|
|
1106 | heap [k] = heap [c]; |
|
|
1107 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1108 | |
|
|
1109 | k = c; |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | heap [k] = he; |
|
|
1113 | ev_active (ANHE_w (he)) = k; |
|
|
1114 | } |
|
|
1115 | #endif |
|
|
1116 | |
|
|
1117 | /* towards the root */ |
|
|
1118 | inline_speed void |
|
|
1119 | upheap (ANHE *heap, int k) |
|
|
1120 | { |
|
|
1121 | ANHE he = heap [k]; |
|
|
1122 | |
|
|
1123 | for (;;) |
|
|
1124 | { |
|
|
1125 | int p = HPARENT (k); |
|
|
1126 | |
|
|
1127 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1128 | break; |
|
|
1129 | |
771 | heap [k] = heap [p]; |
1130 | heap [k] = heap [p]; |
772 | ((W)heap [k])->active = k + 1; |
1131 | ev_active (ANHE_w (heap [k])) = k; |
773 | k = p; |
1132 | k = p; |
774 | } |
1133 | } |
775 | |
1134 | |
776 | heap [k] = w; |
1135 | heap [k] = he; |
777 | ((W)heap [k])->active = k + 1; |
1136 | ev_active (ANHE_w (he)) = k; |
778 | } |
1137 | } |
779 | |
1138 | |
780 | void inline_speed |
1139 | /* move an element suitably so it is in a correct place */ |
781 | downheap (WT *heap, int N, int k) |
1140 | inline_size void |
782 | { |
|
|
783 | WT w = heap [k]; |
|
|
784 | |
|
|
785 | for (;;) |
|
|
786 | { |
|
|
787 | int c = (k << 1) + 1; |
|
|
788 | |
|
|
789 | if (c >= N) |
|
|
790 | break; |
|
|
791 | |
|
|
792 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
793 | ? 1 : 0; |
|
|
794 | |
|
|
795 | if (w->at <= heap [c]->at) |
|
|
796 | break; |
|
|
797 | |
|
|
798 | heap [k] = heap [c]; |
|
|
799 | ((W)heap [k])->active = k + 1; |
|
|
800 | |
|
|
801 | k = c; |
|
|
802 | } |
|
|
803 | |
|
|
804 | heap [k] = w; |
|
|
805 | ((W)heap [k])->active = k + 1; |
|
|
806 | } |
|
|
807 | |
|
|
808 | void inline_size |
|
|
809 | adjustheap (WT *heap, int N, int k) |
1141 | adjustheap (ANHE *heap, int N, int k) |
810 | { |
1142 | { |
|
|
1143 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
811 | upheap (heap, k); |
1144 | upheap (heap, k); |
|
|
1145 | else |
812 | downheap (heap, N, k); |
1146 | downheap (heap, N, k); |
|
|
1147 | } |
|
|
1148 | |
|
|
1149 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1150 | inline_size void |
|
|
1151 | reheap (ANHE *heap, int N) |
|
|
1152 | { |
|
|
1153 | int i; |
|
|
1154 | |
|
|
1155 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1156 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1157 | for (i = 0; i < N; ++i) |
|
|
1158 | upheap (heap, i + HEAP0); |
813 | } |
1159 | } |
814 | |
1160 | |
815 | /*****************************************************************************/ |
1161 | /*****************************************************************************/ |
816 | |
1162 | |
|
|
1163 | /* associate signal watchers to a signal signal */ |
817 | typedef struct |
1164 | typedef struct |
818 | { |
1165 | { |
|
|
1166 | EV_ATOMIC_T pending; |
|
|
1167 | #if EV_MULTIPLICITY |
|
|
1168 | EV_P; |
|
|
1169 | #endif |
819 | WL head; |
1170 | WL head; |
820 | EV_ATOMIC_T gotsig; |
|
|
821 | } ANSIG; |
1171 | } ANSIG; |
822 | |
1172 | |
823 | static ANSIG *signals; |
1173 | static ANSIG signals [EV_NSIG - 1]; |
824 | static int signalmax; |
|
|
825 | |
|
|
826 | static EV_ATOMIC_T gotsig; |
|
|
827 | |
|
|
828 | void inline_size |
|
|
829 | signals_init (ANSIG *base, int count) |
|
|
830 | { |
|
|
831 | while (count--) |
|
|
832 | { |
|
|
833 | base->head = 0; |
|
|
834 | base->gotsig = 0; |
|
|
835 | |
|
|
836 | ++base; |
|
|
837 | } |
|
|
838 | } |
|
|
839 | |
1174 | |
840 | /*****************************************************************************/ |
1175 | /*****************************************************************************/ |
841 | |
1176 | |
842 | void inline_speed |
1177 | /* used to prepare libev internal fd's */ |
|
|
1178 | /* this is not fork-safe */ |
|
|
1179 | inline_speed void |
843 | fd_intern (int fd) |
1180 | fd_intern (int fd) |
844 | { |
1181 | { |
845 | #ifdef _WIN32 |
1182 | #ifdef _WIN32 |
846 | int arg = 1; |
1183 | unsigned long arg = 1; |
847 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1184 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
848 | #else |
1185 | #else |
849 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
851 | #endif |
1188 | #endif |
852 | } |
1189 | } |
853 | |
1190 | |
854 | static void noinline |
1191 | static void noinline |
855 | evpipe_init (EV_P) |
1192 | evpipe_init (EV_P) |
856 | { |
1193 | { |
857 | if (!ev_is_active (&pipeev)) |
1194 | if (!ev_is_active (&pipe_w)) |
858 | { |
1195 | { |
859 | #if EV_USE_EVENTFD |
1196 | #if EV_USE_EVENTFD |
|
|
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1198 | if (evfd < 0 && errno == EINVAL) |
860 | if ((evfd = eventfd (0, 0)) >= 0) |
1199 | evfd = eventfd (0, 0); |
|
|
1200 | |
|
|
1201 | if (evfd >= 0) |
861 | { |
1202 | { |
862 | evpipe [0] = -1; |
1203 | evpipe [0] = -1; |
863 | fd_intern (evfd); |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
864 | ev_io_set (&pipeev, evfd, EV_READ); |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
865 | } |
1206 | } |
866 | else |
1207 | else |
867 | #endif |
1208 | #endif |
868 | { |
1209 | { |
869 | while (pipe (evpipe)) |
1210 | while (pipe (evpipe)) |
870 | syserr ("(libev) error creating signal/async pipe"); |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
871 | |
1212 | |
872 | fd_intern (evpipe [0]); |
1213 | fd_intern (evpipe [0]); |
873 | fd_intern (evpipe [1]); |
1214 | fd_intern (evpipe [1]); |
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1215 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
875 | } |
1216 | } |
876 | |
1217 | |
877 | ev_io_start (EV_A_ &pipeev); |
1218 | ev_io_start (EV_A_ &pipe_w); |
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1219 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
879 | } |
1220 | } |
880 | } |
1221 | } |
881 | |
1222 | |
882 | void inline_size |
1223 | inline_size void |
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
884 | { |
1225 | { |
885 | if (!*flag) |
1226 | if (!*flag) |
886 | { |
1227 | { |
887 | int old_errno = errno; /* save errno because write might clobber it */ |
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
900 | |
1241 | |
901 | errno = old_errno; |
1242 | errno = old_errno; |
902 | } |
1243 | } |
903 | } |
1244 | } |
904 | |
1245 | |
|
|
1246 | /* called whenever the libev signal pipe */ |
|
|
1247 | /* got some events (signal, async) */ |
905 | static void |
1248 | static void |
906 | pipecb (EV_P_ ev_io *iow, int revents) |
1249 | pipecb (EV_P_ ev_io *iow, int revents) |
907 | { |
1250 | { |
|
|
1251 | int i; |
|
|
1252 | |
908 | #if EV_USE_EVENTFD |
1253 | #if EV_USE_EVENTFD |
909 | if (evfd >= 0) |
1254 | if (evfd >= 0) |
910 | { |
1255 | { |
911 | uint64_t counter = 1; |
1256 | uint64_t counter; |
912 | read (evfd, &counter, sizeof (uint64_t)); |
1257 | read (evfd, &counter, sizeof (uint64_t)); |
913 | } |
1258 | } |
914 | else |
1259 | else |
915 | #endif |
1260 | #endif |
916 | { |
1261 | { |
917 | char dummy; |
1262 | char dummy; |
918 | read (evpipe [0], &dummy, 1); |
1263 | read (evpipe [0], &dummy, 1); |
919 | } |
1264 | } |
920 | |
1265 | |
921 | if (gotsig && ev_is_default_loop (EV_A)) |
1266 | if (sig_pending) |
922 | { |
1267 | { |
923 | int signum; |
1268 | sig_pending = 0; |
924 | gotsig = 0; |
|
|
925 | |
1269 | |
926 | for (signum = signalmax; signum--; ) |
1270 | for (i = EV_NSIG - 1; i--; ) |
927 | if (signals [signum].gotsig) |
1271 | if (expect_false (signals [i].pending)) |
928 | ev_feed_signal_event (EV_A_ signum + 1); |
1272 | ev_feed_signal_event (EV_A_ i + 1); |
929 | } |
1273 | } |
930 | |
1274 | |
931 | #if EV_ASYNC_ENABLE |
1275 | #if EV_ASYNC_ENABLE |
932 | if (gotasync) |
1276 | if (async_pending) |
933 | { |
1277 | { |
934 | int i; |
1278 | async_pending = 0; |
935 | gotasync = 0; |
|
|
936 | |
1279 | |
937 | for (i = asynccnt; i--; ) |
1280 | for (i = asynccnt; i--; ) |
938 | if (asyncs [i]->sent) |
1281 | if (asyncs [i]->sent) |
939 | { |
1282 | { |
940 | asyncs [i]->sent = 0; |
1283 | asyncs [i]->sent = 0; |
… | |
… | |
948 | |
1291 | |
949 | static void |
1292 | static void |
950 | ev_sighandler (int signum) |
1293 | ev_sighandler (int signum) |
951 | { |
1294 | { |
952 | #if EV_MULTIPLICITY |
1295 | #if EV_MULTIPLICITY |
953 | struct ev_loop *loop = &default_loop_struct; |
1296 | EV_P = signals [signum - 1].loop; |
954 | #endif |
1297 | #endif |
955 | |
1298 | |
956 | #if _WIN32 |
1299 | #if _WIN32 |
957 | signal (signum, ev_sighandler); |
1300 | signal (signum, ev_sighandler); |
958 | #endif |
1301 | #endif |
959 | |
1302 | |
960 | signals [signum - 1].gotsig = 1; |
1303 | signals [signum - 1].pending = 1; |
961 | evpipe_write (EV_A_ &gotsig); |
1304 | evpipe_write (EV_A_ &sig_pending); |
962 | } |
1305 | } |
963 | |
1306 | |
964 | void noinline |
1307 | void noinline |
965 | ev_feed_signal_event (EV_P_ int signum) |
1308 | ev_feed_signal_event (EV_P_ int signum) |
966 | { |
1309 | { |
967 | WL w; |
1310 | WL w; |
968 | |
1311 | |
|
|
1312 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1313 | return; |
|
|
1314 | |
|
|
1315 | --signum; |
|
|
1316 | |
969 | #if EV_MULTIPLICITY |
1317 | #if EV_MULTIPLICITY |
970 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1318 | /* it is permissible to try to feed a signal to the wrong loop */ |
971 | #endif |
1319 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
972 | |
1320 | |
973 | --signum; |
1321 | if (expect_false (signals [signum].loop != EV_A)) |
974 | |
|
|
975 | if (signum < 0 || signum >= signalmax) |
|
|
976 | return; |
1322 | return; |
|
|
1323 | #endif |
977 | |
1324 | |
978 | signals [signum].gotsig = 0; |
1325 | signals [signum].pending = 0; |
979 | |
1326 | |
980 | for (w = signals [signum].head; w; w = w->next) |
1327 | for (w = signals [signum].head; w; w = w->next) |
981 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1328 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
982 | } |
1329 | } |
983 | |
1330 | |
|
|
1331 | #if EV_USE_SIGNALFD |
|
|
1332 | static void |
|
|
1333 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1334 | { |
|
|
1335 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1336 | |
|
|
1337 | for (;;) |
|
|
1338 | { |
|
|
1339 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1340 | |
|
|
1341 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1342 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1343 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1344 | |
|
|
1345 | if (res < (ssize_t)sizeof (si)) |
|
|
1346 | break; |
|
|
1347 | } |
|
|
1348 | } |
|
|
1349 | #endif |
|
|
1350 | |
984 | /*****************************************************************************/ |
1351 | /*****************************************************************************/ |
985 | |
1352 | |
986 | static WL childs [EV_PID_HASHSIZE]; |
1353 | static WL childs [EV_PID_HASHSIZE]; |
987 | |
1354 | |
988 | #ifndef _WIN32 |
1355 | #ifndef _WIN32 |
… | |
… | |
991 | |
1358 | |
992 | #ifndef WIFCONTINUED |
1359 | #ifndef WIFCONTINUED |
993 | # define WIFCONTINUED(status) 0 |
1360 | # define WIFCONTINUED(status) 0 |
994 | #endif |
1361 | #endif |
995 | |
1362 | |
996 | void inline_speed |
1363 | /* handle a single child status event */ |
|
|
1364 | inline_speed void |
997 | child_reap (EV_P_ int chain, int pid, int status) |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
998 | { |
1366 | { |
999 | ev_child *w; |
1367 | ev_child *w; |
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1001 | |
1369 | |
… | |
… | |
1014 | |
1382 | |
1015 | #ifndef WCONTINUED |
1383 | #ifndef WCONTINUED |
1016 | # define WCONTINUED 0 |
1384 | # define WCONTINUED 0 |
1017 | #endif |
1385 | #endif |
1018 | |
1386 | |
|
|
1387 | /* called on sigchld etc., calls waitpid */ |
1019 | static void |
1388 | static void |
1020 | childcb (EV_P_ ev_signal *sw, int revents) |
1389 | childcb (EV_P_ ev_signal *sw, int revents) |
1021 | { |
1390 | { |
1022 | int pid, status; |
1391 | int pid, status; |
1023 | |
1392 | |
… | |
… | |
1104 | /* kqueue is borked on everything but netbsd apparently */ |
1473 | /* kqueue is borked on everything but netbsd apparently */ |
1105 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1474 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1106 | flags &= ~EVBACKEND_KQUEUE; |
1475 | flags &= ~EVBACKEND_KQUEUE; |
1107 | #endif |
1476 | #endif |
1108 | #ifdef __APPLE__ |
1477 | #ifdef __APPLE__ |
1109 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1478 | /* only select works correctly on that "unix-certified" platform */ |
1110 | flags &= ~EVBACKEND_POLL; |
1479 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1480 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1111 | #endif |
1481 | #endif |
1112 | |
1482 | |
1113 | return flags; |
1483 | return flags; |
1114 | } |
1484 | } |
1115 | |
1485 | |
… | |
… | |
1129 | ev_backend (EV_P) |
1499 | ev_backend (EV_P) |
1130 | { |
1500 | { |
1131 | return backend; |
1501 | return backend; |
1132 | } |
1502 | } |
1133 | |
1503 | |
|
|
1504 | #if EV_MINIMAL < 2 |
1134 | unsigned int |
1505 | unsigned int |
1135 | ev_loop_count (EV_P) |
1506 | ev_loop_count (EV_P) |
1136 | { |
1507 | { |
1137 | return loop_count; |
1508 | return loop_count; |
1138 | } |
1509 | } |
1139 | |
1510 | |
|
|
1511 | unsigned int |
|
|
1512 | ev_loop_depth (EV_P) |
|
|
1513 | { |
|
|
1514 | return loop_depth; |
|
|
1515 | } |
|
|
1516 | |
1140 | void |
1517 | void |
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1518 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1142 | { |
1519 | { |
1143 | io_blocktime = interval; |
1520 | io_blocktime = interval; |
1144 | } |
1521 | } |
… | |
… | |
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1524 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1148 | { |
1525 | { |
1149 | timeout_blocktime = interval; |
1526 | timeout_blocktime = interval; |
1150 | } |
1527 | } |
1151 | |
1528 | |
|
|
1529 | void |
|
|
1530 | ev_set_userdata (EV_P_ void *data) |
|
|
1531 | { |
|
|
1532 | userdata = data; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | void * |
|
|
1536 | ev_userdata (EV_P) |
|
|
1537 | { |
|
|
1538 | return userdata; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1542 | { |
|
|
1543 | invoke_cb = invoke_pending_cb; |
|
|
1544 | } |
|
|
1545 | |
|
|
1546 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1547 | { |
|
|
1548 | release_cb = release; |
|
|
1549 | acquire_cb = acquire; |
|
|
1550 | } |
|
|
1551 | #endif |
|
|
1552 | |
|
|
1553 | /* initialise a loop structure, must be zero-initialised */ |
1152 | static void noinline |
1554 | static void noinline |
1153 | loop_init (EV_P_ unsigned int flags) |
1555 | loop_init (EV_P_ unsigned int flags) |
1154 | { |
1556 | { |
1155 | if (!backend) |
1557 | if (!backend) |
1156 | { |
1558 | { |
|
|
1559 | #if EV_USE_REALTIME |
|
|
1560 | if (!have_realtime) |
|
|
1561 | { |
|
|
1562 | struct timespec ts; |
|
|
1563 | |
|
|
1564 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1565 | have_realtime = 1; |
|
|
1566 | } |
|
|
1567 | #endif |
|
|
1568 | |
1157 | #if EV_USE_MONOTONIC |
1569 | #if EV_USE_MONOTONIC |
|
|
1570 | if (!have_monotonic) |
1158 | { |
1571 | { |
1159 | struct timespec ts; |
1572 | struct timespec ts; |
|
|
1573 | |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1574 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1161 | have_monotonic = 1; |
1575 | have_monotonic = 1; |
1162 | } |
1576 | } |
1163 | #endif |
1577 | #endif |
|
|
1578 | |
|
|
1579 | /* pid check not overridable via env */ |
|
|
1580 | #ifndef _WIN32 |
|
|
1581 | if (flags & EVFLAG_FORKCHECK) |
|
|
1582 | curpid = getpid (); |
|
|
1583 | #endif |
|
|
1584 | |
|
|
1585 | if (!(flags & EVFLAG_NOENV) |
|
|
1586 | && !enable_secure () |
|
|
1587 | && getenv ("LIBEV_FLAGS")) |
|
|
1588 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1164 | |
1589 | |
1165 | ev_rt_now = ev_time (); |
1590 | ev_rt_now = ev_time (); |
1166 | mn_now = get_clock (); |
1591 | mn_now = get_clock (); |
1167 | now_floor = mn_now; |
1592 | now_floor = mn_now; |
1168 | rtmn_diff = ev_rt_now - mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1594 | #if EV_MINIMAL < 2 |
|
|
1595 | invoke_cb = ev_invoke_pending; |
|
|
1596 | #endif |
1169 | |
1597 | |
1170 | io_blocktime = 0.; |
1598 | io_blocktime = 0.; |
1171 | timeout_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1172 | backend = 0; |
1600 | backend = 0; |
1173 | backend_fd = -1; |
1601 | backend_fd = -1; |
1174 | gotasync = 0; |
1602 | sig_pending = 0; |
|
|
1603 | #if EV_ASYNC_ENABLE |
|
|
1604 | async_pending = 0; |
|
|
1605 | #endif |
1175 | #if EV_USE_INOTIFY |
1606 | #if EV_USE_INOTIFY |
1176 | fs_fd = -2; |
1607 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1177 | #endif |
1608 | #endif |
1178 | |
1609 | #if EV_USE_SIGNALFD |
1179 | /* pid check not overridable via env */ |
1610 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1180 | #ifndef _WIN32 |
|
|
1181 | if (flags & EVFLAG_FORKCHECK) |
|
|
1182 | curpid = getpid (); |
|
|
1183 | #endif |
1611 | #endif |
1184 | |
|
|
1185 | if (!(flags & EVFLAG_NOENV) |
|
|
1186 | && !enable_secure () |
|
|
1187 | && getenv ("LIBEV_FLAGS")) |
|
|
1188 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1189 | |
1612 | |
1190 | if (!(flags & 0x0000ffffU)) |
1613 | if (!(flags & 0x0000ffffU)) |
1191 | flags |= ev_recommended_backends (); |
1614 | flags |= ev_recommended_backends (); |
1192 | |
1615 | |
1193 | #if EV_USE_PORT |
1616 | #if EV_USE_PORT |
… | |
… | |
1204 | #endif |
1627 | #endif |
1205 | #if EV_USE_SELECT |
1628 | #if EV_USE_SELECT |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1207 | #endif |
1630 | #endif |
1208 | |
1631 | |
|
|
1632 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1633 | |
1209 | ev_init (&pipeev, pipecb); |
1634 | ev_init (&pipe_w, pipecb); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1211 | } |
1636 | } |
1212 | } |
1637 | } |
1213 | |
1638 | |
|
|
1639 | /* free up a loop structure */ |
1214 | static void noinline |
1640 | static void noinline |
1215 | loop_destroy (EV_P) |
1641 | loop_destroy (EV_P) |
1216 | { |
1642 | { |
1217 | int i; |
1643 | int i; |
1218 | |
1644 | |
1219 | if (ev_is_active (&pipeev)) |
1645 | if (ev_is_active (&pipe_w)) |
1220 | { |
1646 | { |
1221 | ev_ref (EV_A); /* signal watcher */ |
1647 | /*ev_ref (EV_A);*/ |
1222 | ev_io_stop (EV_A_ &pipeev); |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1223 | |
1649 | |
1224 | #if EV_USE_EVENTFD |
1650 | #if EV_USE_EVENTFD |
1225 | if (evfd >= 0) |
1651 | if (evfd >= 0) |
1226 | close (evfd); |
1652 | close (evfd); |
1227 | #endif |
1653 | #endif |
1228 | |
1654 | |
1229 | if (evpipe [0] >= 0) |
1655 | if (evpipe [0] >= 0) |
1230 | { |
1656 | { |
1231 | close (evpipe [0]); |
1657 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1232 | close (evpipe [1]); |
1658 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1233 | } |
1659 | } |
1234 | } |
1660 | } |
|
|
1661 | |
|
|
1662 | #if EV_USE_SIGNALFD |
|
|
1663 | if (ev_is_active (&sigfd_w)) |
|
|
1664 | close (sigfd); |
|
|
1665 | #endif |
1235 | |
1666 | |
1236 | #if EV_USE_INOTIFY |
1667 | #if EV_USE_INOTIFY |
1237 | if (fs_fd >= 0) |
1668 | if (fs_fd >= 0) |
1238 | close (fs_fd); |
1669 | close (fs_fd); |
1239 | #endif |
1670 | #endif |
… | |
… | |
1263 | #if EV_IDLE_ENABLE |
1694 | #if EV_IDLE_ENABLE |
1264 | array_free (idle, [i]); |
1695 | array_free (idle, [i]); |
1265 | #endif |
1696 | #endif |
1266 | } |
1697 | } |
1267 | |
1698 | |
1268 | ev_free (anfds); anfdmax = 0; |
1699 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1269 | |
1700 | |
1270 | /* have to use the microsoft-never-gets-it-right macro */ |
1701 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1702 | array_free (rfeed, EMPTY); |
1271 | array_free (fdchange, EMPTY); |
1703 | array_free (fdchange, EMPTY); |
1272 | array_free (timer, EMPTY); |
1704 | array_free (timer, EMPTY); |
1273 | #if EV_PERIODIC_ENABLE |
1705 | #if EV_PERIODIC_ENABLE |
1274 | array_free (periodic, EMPTY); |
1706 | array_free (periodic, EMPTY); |
1275 | #endif |
1707 | #endif |
… | |
… | |
1284 | |
1716 | |
1285 | backend = 0; |
1717 | backend = 0; |
1286 | } |
1718 | } |
1287 | |
1719 | |
1288 | #if EV_USE_INOTIFY |
1720 | #if EV_USE_INOTIFY |
1289 | void inline_size infy_fork (EV_P); |
1721 | inline_size void infy_fork (EV_P); |
1290 | #endif |
1722 | #endif |
1291 | |
1723 | |
1292 | void inline_size |
1724 | inline_size void |
1293 | loop_fork (EV_P) |
1725 | loop_fork (EV_P) |
1294 | { |
1726 | { |
1295 | #if EV_USE_PORT |
1727 | #if EV_USE_PORT |
1296 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1728 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1297 | #endif |
1729 | #endif |
… | |
… | |
1303 | #endif |
1735 | #endif |
1304 | #if EV_USE_INOTIFY |
1736 | #if EV_USE_INOTIFY |
1305 | infy_fork (EV_A); |
1737 | infy_fork (EV_A); |
1306 | #endif |
1738 | #endif |
1307 | |
1739 | |
1308 | if (ev_is_active (&pipeev)) |
1740 | if (ev_is_active (&pipe_w)) |
1309 | { |
1741 | { |
1310 | /* this "locks" the handlers against writing to the pipe */ |
1742 | /* this "locks" the handlers against writing to the pipe */ |
1311 | /* while we modify the fd vars */ |
1743 | /* while we modify the fd vars */ |
1312 | gotsig = 1; |
1744 | sig_pending = 1; |
1313 | #if EV_ASYNC_ENABLE |
1745 | #if EV_ASYNC_ENABLE |
1314 | gotasync = 1; |
1746 | async_pending = 1; |
1315 | #endif |
1747 | #endif |
1316 | |
1748 | |
1317 | ev_ref (EV_A); |
1749 | ev_ref (EV_A); |
1318 | ev_io_stop (EV_A_ &pipeev); |
1750 | ev_io_stop (EV_A_ &pipe_w); |
1319 | |
1751 | |
1320 | #if EV_USE_EVENTFD |
1752 | #if EV_USE_EVENTFD |
1321 | if (evfd >= 0) |
1753 | if (evfd >= 0) |
1322 | close (evfd); |
1754 | close (evfd); |
1323 | #endif |
1755 | #endif |
1324 | |
1756 | |
1325 | if (evpipe [0] >= 0) |
1757 | if (evpipe [0] >= 0) |
1326 | { |
1758 | { |
1327 | close (evpipe [0]); |
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1328 | close (evpipe [1]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1329 | } |
1761 | } |
1330 | |
1762 | |
1331 | evpipe_init (EV_A); |
1763 | evpipe_init (EV_A); |
1332 | /* now iterate over everything, in case we missed something */ |
1764 | /* now iterate over everything, in case we missed something */ |
1333 | pipecb (EV_A_ &pipeev, EV_READ); |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
1334 | } |
1766 | } |
1335 | |
1767 | |
1336 | postfork = 0; |
1768 | postfork = 0; |
1337 | } |
1769 | } |
1338 | |
1770 | |
1339 | #if EV_MULTIPLICITY |
1771 | #if EV_MULTIPLICITY |
|
|
1772 | |
1340 | struct ev_loop * |
1773 | struct ev_loop * |
1341 | ev_loop_new (unsigned int flags) |
1774 | ev_loop_new (unsigned int flags) |
1342 | { |
1775 | { |
1343 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1776 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1344 | |
1777 | |
1345 | memset (loop, 0, sizeof (struct ev_loop)); |
1778 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1346 | |
|
|
1347 | loop_init (EV_A_ flags); |
1779 | loop_init (EV_A_ flags); |
1348 | |
1780 | |
1349 | if (ev_backend (EV_A)) |
1781 | if (ev_backend (EV_A)) |
1350 | return loop; |
1782 | return EV_A; |
1351 | |
1783 | |
1352 | return 0; |
1784 | return 0; |
1353 | } |
1785 | } |
1354 | |
1786 | |
1355 | void |
1787 | void |
… | |
… | |
1362 | void |
1794 | void |
1363 | ev_loop_fork (EV_P) |
1795 | ev_loop_fork (EV_P) |
1364 | { |
1796 | { |
1365 | postfork = 1; /* must be in line with ev_default_fork */ |
1797 | postfork = 1; /* must be in line with ev_default_fork */ |
1366 | } |
1798 | } |
|
|
1799 | #endif /* multiplicity */ |
1367 | |
1800 | |
|
|
1801 | #if EV_VERIFY |
|
|
1802 | static void noinline |
|
|
1803 | verify_watcher (EV_P_ W w) |
|
|
1804 | { |
|
|
1805 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1806 | |
|
|
1807 | if (w->pending) |
|
|
1808 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | static void noinline |
|
|
1812 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1813 | { |
|
|
1814 | int i; |
|
|
1815 | |
|
|
1816 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1817 | { |
|
|
1818 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1819 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1820 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1821 | |
|
|
1822 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1823 | } |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | static void noinline |
|
|
1827 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1828 | { |
|
|
1829 | while (cnt--) |
|
|
1830 | { |
|
|
1831 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1832 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1833 | } |
|
|
1834 | } |
|
|
1835 | #endif |
|
|
1836 | |
|
|
1837 | #if EV_MINIMAL < 2 |
|
|
1838 | void |
|
|
1839 | ev_loop_verify (EV_P) |
|
|
1840 | { |
|
|
1841 | #if EV_VERIFY |
|
|
1842 | int i; |
|
|
1843 | WL w; |
|
|
1844 | |
|
|
1845 | assert (activecnt >= -1); |
|
|
1846 | |
|
|
1847 | assert (fdchangemax >= fdchangecnt); |
|
|
1848 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1849 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1850 | |
|
|
1851 | assert (anfdmax >= 0); |
|
|
1852 | for (i = 0; i < anfdmax; ++i) |
|
|
1853 | for (w = anfds [i].head; w; w = w->next) |
|
|
1854 | { |
|
|
1855 | verify_watcher (EV_A_ (W)w); |
|
|
1856 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1857 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1858 | } |
|
|
1859 | |
|
|
1860 | assert (timermax >= timercnt); |
|
|
1861 | verify_heap (EV_A_ timers, timercnt); |
|
|
1862 | |
|
|
1863 | #if EV_PERIODIC_ENABLE |
|
|
1864 | assert (periodicmax >= periodiccnt); |
|
|
1865 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1866 | #endif |
|
|
1867 | |
|
|
1868 | for (i = NUMPRI; i--; ) |
|
|
1869 | { |
|
|
1870 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1871 | #if EV_IDLE_ENABLE |
|
|
1872 | assert (idleall >= 0); |
|
|
1873 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1874 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1875 | #endif |
|
|
1876 | } |
|
|
1877 | |
|
|
1878 | #if EV_FORK_ENABLE |
|
|
1879 | assert (forkmax >= forkcnt); |
|
|
1880 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1881 | #endif |
|
|
1882 | |
|
|
1883 | #if EV_ASYNC_ENABLE |
|
|
1884 | assert (asyncmax >= asynccnt); |
|
|
1885 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1886 | #endif |
|
|
1887 | |
|
|
1888 | assert (preparemax >= preparecnt); |
|
|
1889 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1890 | |
|
|
1891 | assert (checkmax >= checkcnt); |
|
|
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1893 | |
|
|
1894 | # if 0 |
|
|
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1896 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1897 | # endif |
|
|
1898 | #endif |
|
|
1899 | } |
1368 | #endif |
1900 | #endif |
1369 | |
1901 | |
1370 | #if EV_MULTIPLICITY |
1902 | #if EV_MULTIPLICITY |
1371 | struct ev_loop * |
1903 | struct ev_loop * |
1372 | ev_default_loop_init (unsigned int flags) |
1904 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1376 | #endif |
1908 | #endif |
1377 | { |
1909 | { |
1378 | if (!ev_default_loop_ptr) |
1910 | if (!ev_default_loop_ptr) |
1379 | { |
1911 | { |
1380 | #if EV_MULTIPLICITY |
1912 | #if EV_MULTIPLICITY |
1381 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1913 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1382 | #else |
1914 | #else |
1383 | ev_default_loop_ptr = 1; |
1915 | ev_default_loop_ptr = 1; |
1384 | #endif |
1916 | #endif |
1385 | |
1917 | |
1386 | loop_init (EV_A_ flags); |
1918 | loop_init (EV_A_ flags); |
… | |
… | |
1403 | |
1935 | |
1404 | void |
1936 | void |
1405 | ev_default_destroy (void) |
1937 | ev_default_destroy (void) |
1406 | { |
1938 | { |
1407 | #if EV_MULTIPLICITY |
1939 | #if EV_MULTIPLICITY |
1408 | struct ev_loop *loop = ev_default_loop_ptr; |
1940 | EV_P = ev_default_loop_ptr; |
1409 | #endif |
1941 | #endif |
|
|
1942 | |
|
|
1943 | ev_default_loop_ptr = 0; |
1410 | |
1944 | |
1411 | #ifndef _WIN32 |
1945 | #ifndef _WIN32 |
1412 | ev_ref (EV_A); /* child watcher */ |
1946 | ev_ref (EV_A); /* child watcher */ |
1413 | ev_signal_stop (EV_A_ &childev); |
1947 | ev_signal_stop (EV_A_ &childev); |
1414 | #endif |
1948 | #endif |
… | |
… | |
1418 | |
1952 | |
1419 | void |
1953 | void |
1420 | ev_default_fork (void) |
1954 | ev_default_fork (void) |
1421 | { |
1955 | { |
1422 | #if EV_MULTIPLICITY |
1956 | #if EV_MULTIPLICITY |
1423 | struct ev_loop *loop = ev_default_loop_ptr; |
1957 | EV_P = ev_default_loop_ptr; |
1424 | #endif |
1958 | #endif |
1425 | |
1959 | |
1426 | if (backend) |
|
|
1427 | postfork = 1; /* must be in line with ev_loop_fork */ |
1960 | postfork = 1; /* must be in line with ev_loop_fork */ |
1428 | } |
1961 | } |
1429 | |
1962 | |
1430 | /*****************************************************************************/ |
1963 | /*****************************************************************************/ |
1431 | |
1964 | |
1432 | void |
1965 | void |
1433 | ev_invoke (EV_P_ void *w, int revents) |
1966 | ev_invoke (EV_P_ void *w, int revents) |
1434 | { |
1967 | { |
1435 | EV_CB_INVOKE ((W)w, revents); |
1968 | EV_CB_INVOKE ((W)w, revents); |
1436 | } |
1969 | } |
1437 | |
1970 | |
1438 | void inline_speed |
1971 | unsigned int |
1439 | call_pending (EV_P) |
1972 | ev_pending_count (EV_P) |
|
|
1973 | { |
|
|
1974 | int pri; |
|
|
1975 | unsigned int count = 0; |
|
|
1976 | |
|
|
1977 | for (pri = NUMPRI; pri--; ) |
|
|
1978 | count += pendingcnt [pri]; |
|
|
1979 | |
|
|
1980 | return count; |
|
|
1981 | } |
|
|
1982 | |
|
|
1983 | void noinline |
|
|
1984 | ev_invoke_pending (EV_P) |
1440 | { |
1985 | { |
1441 | int pri; |
1986 | int pri; |
1442 | |
1987 | |
1443 | for (pri = NUMPRI; pri--; ) |
1988 | for (pri = NUMPRI; pri--; ) |
1444 | while (pendingcnt [pri]) |
1989 | while (pendingcnt [pri]) |
1445 | { |
1990 | { |
1446 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1991 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1447 | |
1992 | |
1448 | if (expect_true (p->w)) |
|
|
1449 | { |
|
|
1450 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1993 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1994 | /* ^ this is no longer true, as pending_w could be here */ |
1451 | |
1995 | |
1452 | p->w->pending = 0; |
1996 | p->w->pending = 0; |
1453 | EV_CB_INVOKE (p->w, p->events); |
1997 | EV_CB_INVOKE (p->w, p->events); |
1454 | } |
1998 | EV_FREQUENT_CHECK; |
1455 | } |
1999 | } |
1456 | } |
2000 | } |
1457 | |
2001 | |
1458 | void inline_size |
|
|
1459 | timers_reify (EV_P) |
|
|
1460 | { |
|
|
1461 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1462 | { |
|
|
1463 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1464 | |
|
|
1465 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1466 | |
|
|
1467 | /* first reschedule or stop timer */ |
|
|
1468 | if (w->repeat) |
|
|
1469 | { |
|
|
1470 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1471 | |
|
|
1472 | ((WT)w)->at += w->repeat; |
|
|
1473 | if (((WT)w)->at < mn_now) |
|
|
1474 | ((WT)w)->at = mn_now; |
|
|
1475 | |
|
|
1476 | downheap (timers, timercnt, 0); |
|
|
1477 | } |
|
|
1478 | else |
|
|
1479 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1480 | |
|
|
1481 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1482 | } |
|
|
1483 | } |
|
|
1484 | |
|
|
1485 | #if EV_PERIODIC_ENABLE |
|
|
1486 | void inline_size |
|
|
1487 | periodics_reify (EV_P) |
|
|
1488 | { |
|
|
1489 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1490 | { |
|
|
1491 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1492 | |
|
|
1493 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1494 | |
|
|
1495 | /* first reschedule or stop timer */ |
|
|
1496 | if (w->reschedule_cb) |
|
|
1497 | { |
|
|
1498 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1499 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1500 | downheap (periodics, periodiccnt, 0); |
|
|
1501 | } |
|
|
1502 | else if (w->interval) |
|
|
1503 | { |
|
|
1504 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1505 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1506 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1507 | downheap (periodics, periodiccnt, 0); |
|
|
1508 | } |
|
|
1509 | else |
|
|
1510 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1511 | |
|
|
1512 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1513 | } |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | static void noinline |
|
|
1517 | periodics_reschedule (EV_P) |
|
|
1518 | { |
|
|
1519 | int i; |
|
|
1520 | |
|
|
1521 | /* adjust periodics after time jump */ |
|
|
1522 | for (i = 0; i < periodiccnt; ++i) |
|
|
1523 | { |
|
|
1524 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1525 | |
|
|
1526 | if (w->reschedule_cb) |
|
|
1527 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1528 | else if (w->interval) |
|
|
1529 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1530 | } |
|
|
1531 | |
|
|
1532 | /* now rebuild the heap */ |
|
|
1533 | for (i = periodiccnt >> 1; i--; ) |
|
|
1534 | downheap (periodics, periodiccnt, i); |
|
|
1535 | } |
|
|
1536 | #endif |
|
|
1537 | |
|
|
1538 | #if EV_IDLE_ENABLE |
2002 | #if EV_IDLE_ENABLE |
1539 | void inline_size |
2003 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2004 | /* only when higher priorities are idle" logic */ |
|
|
2005 | inline_size void |
1540 | idle_reify (EV_P) |
2006 | idle_reify (EV_P) |
1541 | { |
2007 | { |
1542 | if (expect_false (idleall)) |
2008 | if (expect_false (idleall)) |
1543 | { |
2009 | { |
1544 | int pri; |
2010 | int pri; |
… | |
… | |
1556 | } |
2022 | } |
1557 | } |
2023 | } |
1558 | } |
2024 | } |
1559 | #endif |
2025 | #endif |
1560 | |
2026 | |
1561 | void inline_speed |
2027 | /* make timers pending */ |
|
|
2028 | inline_size void |
|
|
2029 | timers_reify (EV_P) |
|
|
2030 | { |
|
|
2031 | EV_FREQUENT_CHECK; |
|
|
2032 | |
|
|
2033 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2034 | { |
|
|
2035 | do |
|
|
2036 | { |
|
|
2037 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2038 | |
|
|
2039 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2040 | |
|
|
2041 | /* first reschedule or stop timer */ |
|
|
2042 | if (w->repeat) |
|
|
2043 | { |
|
|
2044 | ev_at (w) += w->repeat; |
|
|
2045 | if (ev_at (w) < mn_now) |
|
|
2046 | ev_at (w) = mn_now; |
|
|
2047 | |
|
|
2048 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2049 | |
|
|
2050 | ANHE_at_cache (timers [HEAP0]); |
|
|
2051 | downheap (timers, timercnt, HEAP0); |
|
|
2052 | } |
|
|
2053 | else |
|
|
2054 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2055 | |
|
|
2056 | EV_FREQUENT_CHECK; |
|
|
2057 | feed_reverse (EV_A_ (W)w); |
|
|
2058 | } |
|
|
2059 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2060 | |
|
|
2061 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2062 | } |
|
|
2063 | } |
|
|
2064 | |
|
|
2065 | #if EV_PERIODIC_ENABLE |
|
|
2066 | /* make periodics pending */ |
|
|
2067 | inline_size void |
|
|
2068 | periodics_reify (EV_P) |
|
|
2069 | { |
|
|
2070 | EV_FREQUENT_CHECK; |
|
|
2071 | |
|
|
2072 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2073 | { |
|
|
2074 | int feed_count = 0; |
|
|
2075 | |
|
|
2076 | do |
|
|
2077 | { |
|
|
2078 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2079 | |
|
|
2080 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2081 | |
|
|
2082 | /* first reschedule or stop timer */ |
|
|
2083 | if (w->reschedule_cb) |
|
|
2084 | { |
|
|
2085 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2086 | |
|
|
2087 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2088 | |
|
|
2089 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2090 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2091 | } |
|
|
2092 | else if (w->interval) |
|
|
2093 | { |
|
|
2094 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2095 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2096 | /* this might happen because of floating point inexactness */ |
|
|
2097 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2098 | { |
|
|
2099 | ev_at (w) += w->interval; |
|
|
2100 | |
|
|
2101 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2102 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2103 | /* has effectively asked to get triggered more often than possible */ |
|
|
2104 | if (ev_at (w) < ev_rt_now) |
|
|
2105 | ev_at (w) = ev_rt_now; |
|
|
2106 | } |
|
|
2107 | |
|
|
2108 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2109 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2110 | } |
|
|
2111 | else |
|
|
2112 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2113 | |
|
|
2114 | EV_FREQUENT_CHECK; |
|
|
2115 | feed_reverse (EV_A_ (W)w); |
|
|
2116 | } |
|
|
2117 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2118 | |
|
|
2119 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2120 | } |
|
|
2121 | } |
|
|
2122 | |
|
|
2123 | /* simply recalculate all periodics */ |
|
|
2124 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2125 | static void noinline |
|
|
2126 | periodics_reschedule (EV_P) |
|
|
2127 | { |
|
|
2128 | int i; |
|
|
2129 | |
|
|
2130 | /* adjust periodics after time jump */ |
|
|
2131 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2132 | { |
|
|
2133 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2134 | |
|
|
2135 | if (w->reschedule_cb) |
|
|
2136 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2137 | else if (w->interval) |
|
|
2138 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2139 | |
|
|
2140 | ANHE_at_cache (periodics [i]); |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | reheap (periodics, periodiccnt); |
|
|
2144 | } |
|
|
2145 | #endif |
|
|
2146 | |
|
|
2147 | /* adjust all timers by a given offset */ |
|
|
2148 | static void noinline |
|
|
2149 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2150 | { |
|
|
2151 | int i; |
|
|
2152 | |
|
|
2153 | for (i = 0; i < timercnt; ++i) |
|
|
2154 | { |
|
|
2155 | ANHE *he = timers + i + HEAP0; |
|
|
2156 | ANHE_w (*he)->at += adjust; |
|
|
2157 | ANHE_at_cache (*he); |
|
|
2158 | } |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2162 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2163 | inline_speed void |
1562 | time_update (EV_P_ ev_tstamp max_block) |
2164 | time_update (EV_P_ ev_tstamp max_block) |
1563 | { |
2165 | { |
1564 | int i; |
|
|
1565 | |
|
|
1566 | #if EV_USE_MONOTONIC |
2166 | #if EV_USE_MONOTONIC |
1567 | if (expect_true (have_monotonic)) |
2167 | if (expect_true (have_monotonic)) |
1568 | { |
2168 | { |
|
|
2169 | int i; |
1569 | ev_tstamp odiff = rtmn_diff; |
2170 | ev_tstamp odiff = rtmn_diff; |
1570 | |
2171 | |
1571 | mn_now = get_clock (); |
2172 | mn_now = get_clock (); |
1572 | |
2173 | |
1573 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2174 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1591 | */ |
2192 | */ |
1592 | for (i = 4; --i; ) |
2193 | for (i = 4; --i; ) |
1593 | { |
2194 | { |
1594 | rtmn_diff = ev_rt_now - mn_now; |
2195 | rtmn_diff = ev_rt_now - mn_now; |
1595 | |
2196 | |
1596 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2197 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1597 | return; /* all is well */ |
2198 | return; /* all is well */ |
1598 | |
2199 | |
1599 | ev_rt_now = ev_time (); |
2200 | ev_rt_now = ev_time (); |
1600 | mn_now = get_clock (); |
2201 | mn_now = get_clock (); |
1601 | now_floor = mn_now; |
2202 | now_floor = mn_now; |
1602 | } |
2203 | } |
1603 | |
2204 | |
|
|
2205 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2206 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1604 | # if EV_PERIODIC_ENABLE |
2207 | # if EV_PERIODIC_ENABLE |
1605 | periodics_reschedule (EV_A); |
2208 | periodics_reschedule (EV_A); |
1606 | # endif |
2209 | # endif |
1607 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1608 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1609 | } |
2210 | } |
1610 | else |
2211 | else |
1611 | #endif |
2212 | #endif |
1612 | { |
2213 | { |
1613 | ev_rt_now = ev_time (); |
2214 | ev_rt_now = ev_time (); |
1614 | |
2215 | |
1615 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2216 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1616 | { |
2217 | { |
|
|
2218 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2219 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1617 | #if EV_PERIODIC_ENABLE |
2220 | #if EV_PERIODIC_ENABLE |
1618 | periodics_reschedule (EV_A); |
2221 | periodics_reschedule (EV_A); |
1619 | #endif |
2222 | #endif |
1620 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1621 | for (i = 0; i < timercnt; ++i) |
|
|
1622 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1623 | } |
2223 | } |
1624 | |
2224 | |
1625 | mn_now = ev_rt_now; |
2225 | mn_now = ev_rt_now; |
1626 | } |
2226 | } |
1627 | } |
2227 | } |
1628 | |
2228 | |
1629 | void |
2229 | void |
1630 | ev_ref (EV_P) |
|
|
1631 | { |
|
|
1632 | ++activecnt; |
|
|
1633 | } |
|
|
1634 | |
|
|
1635 | void |
|
|
1636 | ev_unref (EV_P) |
|
|
1637 | { |
|
|
1638 | --activecnt; |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | static int loop_done; |
|
|
1642 | |
|
|
1643 | void |
|
|
1644 | ev_loop (EV_P_ int flags) |
2230 | ev_loop (EV_P_ int flags) |
1645 | { |
2231 | { |
|
|
2232 | #if EV_MINIMAL < 2 |
|
|
2233 | ++loop_depth; |
|
|
2234 | #endif |
|
|
2235 | |
|
|
2236 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2237 | |
1646 | loop_done = EVUNLOOP_CANCEL; |
2238 | loop_done = EVUNLOOP_CANCEL; |
1647 | |
2239 | |
1648 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2240 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1649 | |
2241 | |
1650 | do |
2242 | do |
1651 | { |
2243 | { |
|
|
2244 | #if EV_VERIFY >= 2 |
|
|
2245 | ev_loop_verify (EV_A); |
|
|
2246 | #endif |
|
|
2247 | |
1652 | #ifndef _WIN32 |
2248 | #ifndef _WIN32 |
1653 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2249 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1654 | if (expect_false (getpid () != curpid)) |
2250 | if (expect_false (getpid () != curpid)) |
1655 | { |
2251 | { |
1656 | curpid = getpid (); |
2252 | curpid = getpid (); |
… | |
… | |
1662 | /* we might have forked, so queue fork handlers */ |
2258 | /* we might have forked, so queue fork handlers */ |
1663 | if (expect_false (postfork)) |
2259 | if (expect_false (postfork)) |
1664 | if (forkcnt) |
2260 | if (forkcnt) |
1665 | { |
2261 | { |
1666 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2262 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1667 | call_pending (EV_A); |
2263 | EV_INVOKE_PENDING; |
1668 | } |
2264 | } |
1669 | #endif |
2265 | #endif |
1670 | |
2266 | |
1671 | /* queue prepare watchers (and execute them) */ |
2267 | /* queue prepare watchers (and execute them) */ |
1672 | if (expect_false (preparecnt)) |
2268 | if (expect_false (preparecnt)) |
1673 | { |
2269 | { |
1674 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2270 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1675 | call_pending (EV_A); |
2271 | EV_INVOKE_PENDING; |
1676 | } |
2272 | } |
1677 | |
2273 | |
1678 | if (expect_false (!activecnt)) |
2274 | if (expect_false (loop_done)) |
1679 | break; |
2275 | break; |
1680 | |
2276 | |
1681 | /* we might have forked, so reify kernel state if necessary */ |
2277 | /* we might have forked, so reify kernel state if necessary */ |
1682 | if (expect_false (postfork)) |
2278 | if (expect_false (postfork)) |
1683 | loop_fork (EV_A); |
2279 | loop_fork (EV_A); |
… | |
… | |
1690 | ev_tstamp waittime = 0.; |
2286 | ev_tstamp waittime = 0.; |
1691 | ev_tstamp sleeptime = 0.; |
2287 | ev_tstamp sleeptime = 0.; |
1692 | |
2288 | |
1693 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2289 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1694 | { |
2290 | { |
|
|
2291 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2292 | ev_tstamp prev_mn_now = mn_now; |
|
|
2293 | |
1695 | /* update time to cancel out callback processing overhead */ |
2294 | /* update time to cancel out callback processing overhead */ |
1696 | time_update (EV_A_ 1e100); |
2295 | time_update (EV_A_ 1e100); |
1697 | |
2296 | |
1698 | waittime = MAX_BLOCKTIME; |
2297 | waittime = MAX_BLOCKTIME; |
1699 | |
2298 | |
1700 | if (timercnt) |
2299 | if (timercnt) |
1701 | { |
2300 | { |
1702 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2301 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1703 | if (waittime > to) waittime = to; |
2302 | if (waittime > to) waittime = to; |
1704 | } |
2303 | } |
1705 | |
2304 | |
1706 | #if EV_PERIODIC_ENABLE |
2305 | #if EV_PERIODIC_ENABLE |
1707 | if (periodiccnt) |
2306 | if (periodiccnt) |
1708 | { |
2307 | { |
1709 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2308 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1710 | if (waittime > to) waittime = to; |
2309 | if (waittime > to) waittime = to; |
1711 | } |
2310 | } |
1712 | #endif |
2311 | #endif |
1713 | |
2312 | |
|
|
2313 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1714 | if (expect_false (waittime < timeout_blocktime)) |
2314 | if (expect_false (waittime < timeout_blocktime)) |
1715 | waittime = timeout_blocktime; |
2315 | waittime = timeout_blocktime; |
1716 | |
2316 | |
1717 | sleeptime = waittime - backend_fudge; |
2317 | /* extra check because io_blocktime is commonly 0 */ |
1718 | |
|
|
1719 | if (expect_true (sleeptime > io_blocktime)) |
2318 | if (expect_false (io_blocktime)) |
1720 | sleeptime = io_blocktime; |
|
|
1721 | |
|
|
1722 | if (sleeptime) |
|
|
1723 | { |
2319 | { |
|
|
2320 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2321 | |
|
|
2322 | if (sleeptime > waittime - backend_fudge) |
|
|
2323 | sleeptime = waittime - backend_fudge; |
|
|
2324 | |
|
|
2325 | if (expect_true (sleeptime > 0.)) |
|
|
2326 | { |
1724 | ev_sleep (sleeptime); |
2327 | ev_sleep (sleeptime); |
1725 | waittime -= sleeptime; |
2328 | waittime -= sleeptime; |
|
|
2329 | } |
1726 | } |
2330 | } |
1727 | } |
2331 | } |
1728 | |
2332 | |
|
|
2333 | #if EV_MINIMAL < 2 |
1729 | ++loop_count; |
2334 | ++loop_count; |
|
|
2335 | #endif |
|
|
2336 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1730 | backend_poll (EV_A_ waittime); |
2337 | backend_poll (EV_A_ waittime); |
|
|
2338 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1731 | |
2339 | |
1732 | /* update ev_rt_now, do magic */ |
2340 | /* update ev_rt_now, do magic */ |
1733 | time_update (EV_A_ waittime + sleeptime); |
2341 | time_update (EV_A_ waittime + sleeptime); |
1734 | } |
2342 | } |
1735 | |
2343 | |
… | |
… | |
1746 | |
2354 | |
1747 | /* queue check watchers, to be executed first */ |
2355 | /* queue check watchers, to be executed first */ |
1748 | if (expect_false (checkcnt)) |
2356 | if (expect_false (checkcnt)) |
1749 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2357 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1750 | |
2358 | |
1751 | call_pending (EV_A); |
2359 | EV_INVOKE_PENDING; |
1752 | } |
2360 | } |
1753 | while (expect_true ( |
2361 | while (expect_true ( |
1754 | activecnt |
2362 | activecnt |
1755 | && !loop_done |
2363 | && !loop_done |
1756 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2364 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1757 | )); |
2365 | )); |
1758 | |
2366 | |
1759 | if (loop_done == EVUNLOOP_ONE) |
2367 | if (loop_done == EVUNLOOP_ONE) |
1760 | loop_done = EVUNLOOP_CANCEL; |
2368 | loop_done = EVUNLOOP_CANCEL; |
|
|
2369 | |
|
|
2370 | #if EV_MINIMAL < 2 |
|
|
2371 | --loop_depth; |
|
|
2372 | #endif |
1761 | } |
2373 | } |
1762 | |
2374 | |
1763 | void |
2375 | void |
1764 | ev_unloop (EV_P_ int how) |
2376 | ev_unloop (EV_P_ int how) |
1765 | { |
2377 | { |
1766 | loop_done = how; |
2378 | loop_done = how; |
1767 | } |
2379 | } |
1768 | |
2380 | |
|
|
2381 | void |
|
|
2382 | ev_ref (EV_P) |
|
|
2383 | { |
|
|
2384 | ++activecnt; |
|
|
2385 | } |
|
|
2386 | |
|
|
2387 | void |
|
|
2388 | ev_unref (EV_P) |
|
|
2389 | { |
|
|
2390 | --activecnt; |
|
|
2391 | } |
|
|
2392 | |
|
|
2393 | void |
|
|
2394 | ev_now_update (EV_P) |
|
|
2395 | { |
|
|
2396 | time_update (EV_A_ 1e100); |
|
|
2397 | } |
|
|
2398 | |
|
|
2399 | void |
|
|
2400 | ev_suspend (EV_P) |
|
|
2401 | { |
|
|
2402 | ev_now_update (EV_A); |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | void |
|
|
2406 | ev_resume (EV_P) |
|
|
2407 | { |
|
|
2408 | ev_tstamp mn_prev = mn_now; |
|
|
2409 | |
|
|
2410 | ev_now_update (EV_A); |
|
|
2411 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2412 | #if EV_PERIODIC_ENABLE |
|
|
2413 | /* TODO: really do this? */ |
|
|
2414 | periodics_reschedule (EV_A); |
|
|
2415 | #endif |
|
|
2416 | } |
|
|
2417 | |
1769 | /*****************************************************************************/ |
2418 | /*****************************************************************************/ |
|
|
2419 | /* singly-linked list management, used when the expected list length is short */ |
1770 | |
2420 | |
1771 | void inline_size |
2421 | inline_size void |
1772 | wlist_add (WL *head, WL elem) |
2422 | wlist_add (WL *head, WL elem) |
1773 | { |
2423 | { |
1774 | elem->next = *head; |
2424 | elem->next = *head; |
1775 | *head = elem; |
2425 | *head = elem; |
1776 | } |
2426 | } |
1777 | |
2427 | |
1778 | void inline_size |
2428 | inline_size void |
1779 | wlist_del (WL *head, WL elem) |
2429 | wlist_del (WL *head, WL elem) |
1780 | { |
2430 | { |
1781 | while (*head) |
2431 | while (*head) |
1782 | { |
2432 | { |
1783 | if (*head == elem) |
2433 | if (expect_true (*head == elem)) |
1784 | { |
2434 | { |
1785 | *head = elem->next; |
2435 | *head = elem->next; |
1786 | return; |
2436 | break; |
1787 | } |
2437 | } |
1788 | |
2438 | |
1789 | head = &(*head)->next; |
2439 | head = &(*head)->next; |
1790 | } |
2440 | } |
1791 | } |
2441 | } |
1792 | |
2442 | |
1793 | void inline_speed |
2443 | /* internal, faster, version of ev_clear_pending */ |
|
|
2444 | inline_speed void |
1794 | clear_pending (EV_P_ W w) |
2445 | clear_pending (EV_P_ W w) |
1795 | { |
2446 | { |
1796 | if (w->pending) |
2447 | if (w->pending) |
1797 | { |
2448 | { |
1798 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2449 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1799 | w->pending = 0; |
2450 | w->pending = 0; |
1800 | } |
2451 | } |
1801 | } |
2452 | } |
1802 | |
2453 | |
1803 | int |
2454 | int |
… | |
… | |
1807 | int pending = w_->pending; |
2458 | int pending = w_->pending; |
1808 | |
2459 | |
1809 | if (expect_true (pending)) |
2460 | if (expect_true (pending)) |
1810 | { |
2461 | { |
1811 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2462 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2463 | p->w = (W)&pending_w; |
1812 | w_->pending = 0; |
2464 | w_->pending = 0; |
1813 | p->w = 0; |
|
|
1814 | return p->events; |
2465 | return p->events; |
1815 | } |
2466 | } |
1816 | else |
2467 | else |
1817 | return 0; |
2468 | return 0; |
1818 | } |
2469 | } |
1819 | |
2470 | |
1820 | void inline_size |
2471 | inline_size void |
1821 | pri_adjust (EV_P_ W w) |
2472 | pri_adjust (EV_P_ W w) |
1822 | { |
2473 | { |
1823 | int pri = w->priority; |
2474 | int pri = ev_priority (w); |
1824 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2475 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1825 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2476 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1826 | w->priority = pri; |
2477 | ev_set_priority (w, pri); |
1827 | } |
2478 | } |
1828 | |
2479 | |
1829 | void inline_speed |
2480 | inline_speed void |
1830 | ev_start (EV_P_ W w, int active) |
2481 | ev_start (EV_P_ W w, int active) |
1831 | { |
2482 | { |
1832 | pri_adjust (EV_A_ w); |
2483 | pri_adjust (EV_A_ w); |
1833 | w->active = active; |
2484 | w->active = active; |
1834 | ev_ref (EV_A); |
2485 | ev_ref (EV_A); |
1835 | } |
2486 | } |
1836 | |
2487 | |
1837 | void inline_size |
2488 | inline_size void |
1838 | ev_stop (EV_P_ W w) |
2489 | ev_stop (EV_P_ W w) |
1839 | { |
2490 | { |
1840 | ev_unref (EV_A); |
2491 | ev_unref (EV_A); |
1841 | w->active = 0; |
2492 | w->active = 0; |
1842 | } |
2493 | } |
… | |
… | |
1849 | int fd = w->fd; |
2500 | int fd = w->fd; |
1850 | |
2501 | |
1851 | if (expect_false (ev_is_active (w))) |
2502 | if (expect_false (ev_is_active (w))) |
1852 | return; |
2503 | return; |
1853 | |
2504 | |
1854 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2505 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2506 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2507 | |
|
|
2508 | EV_FREQUENT_CHECK; |
1855 | |
2509 | |
1856 | ev_start (EV_A_ (W)w, 1); |
2510 | ev_start (EV_A_ (W)w, 1); |
1857 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2511 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1858 | wlist_add (&anfds[fd].head, (WL)w); |
2512 | wlist_add (&anfds[fd].head, (WL)w); |
1859 | |
2513 | |
1860 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2514 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1861 | w->events &= ~EV_IOFDSET; |
2515 | w->events &= ~EV__IOFDSET; |
|
|
2516 | |
|
|
2517 | EV_FREQUENT_CHECK; |
1862 | } |
2518 | } |
1863 | |
2519 | |
1864 | void noinline |
2520 | void noinline |
1865 | ev_io_stop (EV_P_ ev_io *w) |
2521 | ev_io_stop (EV_P_ ev_io *w) |
1866 | { |
2522 | { |
1867 | clear_pending (EV_A_ (W)w); |
2523 | clear_pending (EV_A_ (W)w); |
1868 | if (expect_false (!ev_is_active (w))) |
2524 | if (expect_false (!ev_is_active (w))) |
1869 | return; |
2525 | return; |
1870 | |
2526 | |
1871 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2527 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2528 | |
|
|
2529 | EV_FREQUENT_CHECK; |
1872 | |
2530 | |
1873 | wlist_del (&anfds[w->fd].head, (WL)w); |
2531 | wlist_del (&anfds[w->fd].head, (WL)w); |
1874 | ev_stop (EV_A_ (W)w); |
2532 | ev_stop (EV_A_ (W)w); |
1875 | |
2533 | |
1876 | fd_change (EV_A_ w->fd, 1); |
2534 | fd_change (EV_A_ w->fd, 1); |
|
|
2535 | |
|
|
2536 | EV_FREQUENT_CHECK; |
1877 | } |
2537 | } |
1878 | |
2538 | |
1879 | void noinline |
2539 | void noinline |
1880 | ev_timer_start (EV_P_ ev_timer *w) |
2540 | ev_timer_start (EV_P_ ev_timer *w) |
1881 | { |
2541 | { |
1882 | if (expect_false (ev_is_active (w))) |
2542 | if (expect_false (ev_is_active (w))) |
1883 | return; |
2543 | return; |
1884 | |
2544 | |
1885 | ((WT)w)->at += mn_now; |
2545 | ev_at (w) += mn_now; |
1886 | |
2546 | |
1887 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2547 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1888 | |
2548 | |
|
|
2549 | EV_FREQUENT_CHECK; |
|
|
2550 | |
|
|
2551 | ++timercnt; |
1889 | ev_start (EV_A_ (W)w, ++timercnt); |
2552 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1890 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2553 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1891 | timers [timercnt - 1] = (WT)w; |
2554 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1892 | upheap (timers, timercnt - 1); |
2555 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2556 | upheap (timers, ev_active (w)); |
1893 | |
2557 | |
|
|
2558 | EV_FREQUENT_CHECK; |
|
|
2559 | |
1894 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2560 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1895 | } |
2561 | } |
1896 | |
2562 | |
1897 | void noinline |
2563 | void noinline |
1898 | ev_timer_stop (EV_P_ ev_timer *w) |
2564 | ev_timer_stop (EV_P_ ev_timer *w) |
1899 | { |
2565 | { |
1900 | clear_pending (EV_A_ (W)w); |
2566 | clear_pending (EV_A_ (W)w); |
1901 | if (expect_false (!ev_is_active (w))) |
2567 | if (expect_false (!ev_is_active (w))) |
1902 | return; |
2568 | return; |
1903 | |
2569 | |
1904 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2570 | EV_FREQUENT_CHECK; |
1905 | |
2571 | |
1906 | { |
2572 | { |
1907 | int active = ((W)w)->active; |
2573 | int active = ev_active (w); |
1908 | |
2574 | |
|
|
2575 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2576 | |
|
|
2577 | --timercnt; |
|
|
2578 | |
1909 | if (expect_true (--active < --timercnt)) |
2579 | if (expect_true (active < timercnt + HEAP0)) |
1910 | { |
2580 | { |
1911 | timers [active] = timers [timercnt]; |
2581 | timers [active] = timers [timercnt + HEAP0]; |
1912 | adjustheap (timers, timercnt, active); |
2582 | adjustheap (timers, timercnt, active); |
1913 | } |
2583 | } |
1914 | } |
2584 | } |
1915 | |
2585 | |
1916 | ((WT)w)->at -= mn_now; |
2586 | EV_FREQUENT_CHECK; |
|
|
2587 | |
|
|
2588 | ev_at (w) -= mn_now; |
1917 | |
2589 | |
1918 | ev_stop (EV_A_ (W)w); |
2590 | ev_stop (EV_A_ (W)w); |
1919 | } |
2591 | } |
1920 | |
2592 | |
1921 | void noinline |
2593 | void noinline |
1922 | ev_timer_again (EV_P_ ev_timer *w) |
2594 | ev_timer_again (EV_P_ ev_timer *w) |
1923 | { |
2595 | { |
|
|
2596 | EV_FREQUENT_CHECK; |
|
|
2597 | |
1924 | if (ev_is_active (w)) |
2598 | if (ev_is_active (w)) |
1925 | { |
2599 | { |
1926 | if (w->repeat) |
2600 | if (w->repeat) |
1927 | { |
2601 | { |
1928 | ((WT)w)->at = mn_now + w->repeat; |
2602 | ev_at (w) = mn_now + w->repeat; |
|
|
2603 | ANHE_at_cache (timers [ev_active (w)]); |
1929 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2604 | adjustheap (timers, timercnt, ev_active (w)); |
1930 | } |
2605 | } |
1931 | else |
2606 | else |
1932 | ev_timer_stop (EV_A_ w); |
2607 | ev_timer_stop (EV_A_ w); |
1933 | } |
2608 | } |
1934 | else if (w->repeat) |
2609 | else if (w->repeat) |
1935 | { |
2610 | { |
1936 | w->at = w->repeat; |
2611 | ev_at (w) = w->repeat; |
1937 | ev_timer_start (EV_A_ w); |
2612 | ev_timer_start (EV_A_ w); |
1938 | } |
2613 | } |
|
|
2614 | |
|
|
2615 | EV_FREQUENT_CHECK; |
|
|
2616 | } |
|
|
2617 | |
|
|
2618 | ev_tstamp |
|
|
2619 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2620 | { |
|
|
2621 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1939 | } |
2622 | } |
1940 | |
2623 | |
1941 | #if EV_PERIODIC_ENABLE |
2624 | #if EV_PERIODIC_ENABLE |
1942 | void noinline |
2625 | void noinline |
1943 | ev_periodic_start (EV_P_ ev_periodic *w) |
2626 | ev_periodic_start (EV_P_ ev_periodic *w) |
1944 | { |
2627 | { |
1945 | if (expect_false (ev_is_active (w))) |
2628 | if (expect_false (ev_is_active (w))) |
1946 | return; |
2629 | return; |
1947 | |
2630 | |
1948 | if (w->reschedule_cb) |
2631 | if (w->reschedule_cb) |
1949 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2632 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1950 | else if (w->interval) |
2633 | else if (w->interval) |
1951 | { |
2634 | { |
1952 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2635 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1953 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2636 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1954 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2637 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1955 | } |
2638 | } |
1956 | else |
2639 | else |
1957 | ((WT)w)->at = w->offset; |
2640 | ev_at (w) = w->offset; |
1958 | |
2641 | |
|
|
2642 | EV_FREQUENT_CHECK; |
|
|
2643 | |
|
|
2644 | ++periodiccnt; |
1959 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2645 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1960 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2646 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1961 | periodics [periodiccnt - 1] = (WT)w; |
2647 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1962 | upheap (periodics, periodiccnt - 1); |
2648 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2649 | upheap (periodics, ev_active (w)); |
1963 | |
2650 | |
|
|
2651 | EV_FREQUENT_CHECK; |
|
|
2652 | |
1964 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2653 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1965 | } |
2654 | } |
1966 | |
2655 | |
1967 | void noinline |
2656 | void noinline |
1968 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2657 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1969 | { |
2658 | { |
1970 | clear_pending (EV_A_ (W)w); |
2659 | clear_pending (EV_A_ (W)w); |
1971 | if (expect_false (!ev_is_active (w))) |
2660 | if (expect_false (!ev_is_active (w))) |
1972 | return; |
2661 | return; |
1973 | |
2662 | |
1974 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2663 | EV_FREQUENT_CHECK; |
1975 | |
2664 | |
1976 | { |
2665 | { |
1977 | int active = ((W)w)->active; |
2666 | int active = ev_active (w); |
1978 | |
2667 | |
|
|
2668 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2669 | |
|
|
2670 | --periodiccnt; |
|
|
2671 | |
1979 | if (expect_true (--active < --periodiccnt)) |
2672 | if (expect_true (active < periodiccnt + HEAP0)) |
1980 | { |
2673 | { |
1981 | periodics [active] = periodics [periodiccnt]; |
2674 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1982 | adjustheap (periodics, periodiccnt, active); |
2675 | adjustheap (periodics, periodiccnt, active); |
1983 | } |
2676 | } |
1984 | } |
2677 | } |
1985 | |
2678 | |
|
|
2679 | EV_FREQUENT_CHECK; |
|
|
2680 | |
1986 | ev_stop (EV_A_ (W)w); |
2681 | ev_stop (EV_A_ (W)w); |
1987 | } |
2682 | } |
1988 | |
2683 | |
1989 | void noinline |
2684 | void noinline |
1990 | ev_periodic_again (EV_P_ ev_periodic *w) |
2685 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
2000 | #endif |
2695 | #endif |
2001 | |
2696 | |
2002 | void noinline |
2697 | void noinline |
2003 | ev_signal_start (EV_P_ ev_signal *w) |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
2004 | { |
2699 | { |
2005 | #if EV_MULTIPLICITY |
|
|
2006 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2007 | #endif |
|
|
2008 | if (expect_false (ev_is_active (w))) |
2700 | if (expect_false (ev_is_active (w))) |
2009 | return; |
2701 | return; |
2010 | |
2702 | |
2011 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2703 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2012 | |
2704 | |
2013 | evpipe_init (EV_A); |
2705 | #if EV_MULTIPLICITY |
|
|
2706 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2707 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2014 | |
2708 | |
|
|
2709 | signals [w->signum - 1].loop = EV_A; |
|
|
2710 | #endif |
|
|
2711 | |
|
|
2712 | EV_FREQUENT_CHECK; |
|
|
2713 | |
|
|
2714 | #if EV_USE_SIGNALFD |
|
|
2715 | if (sigfd == -2) |
2015 | { |
2716 | { |
2016 | #ifndef _WIN32 |
2717 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2017 | sigset_t full, prev; |
2718 | if (sigfd < 0 && errno == EINVAL) |
2018 | sigfillset (&full); |
2719 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2019 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2020 | #endif |
|
|
2021 | |
2720 | |
2022 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2721 | if (sigfd >= 0) |
|
|
2722 | { |
|
|
2723 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2023 | |
2724 | |
2024 | #ifndef _WIN32 |
2725 | sigemptyset (&sigfd_set); |
2025 | sigprocmask (SIG_SETMASK, &prev, 0); |
2726 | |
2026 | #endif |
2727 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2728 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2729 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2730 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2731 | } |
2027 | } |
2732 | } |
|
|
2733 | |
|
|
2734 | if (sigfd >= 0) |
|
|
2735 | { |
|
|
2736 | /* TODO: check .head */ |
|
|
2737 | sigaddset (&sigfd_set, w->signum); |
|
|
2738 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2739 | |
|
|
2740 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2741 | } |
|
|
2742 | #endif |
2028 | |
2743 | |
2029 | ev_start (EV_A_ (W)w, 1); |
2744 | ev_start (EV_A_ (W)w, 1); |
2030 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2745 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2031 | |
2746 | |
2032 | if (!((WL)w)->next) |
2747 | if (!((WL)w)->next) |
|
|
2748 | # if EV_USE_SIGNALFD |
|
|
2749 | if (sigfd < 0) /*TODO*/ |
|
|
2750 | # endif |
2033 | { |
2751 | { |
2034 | #if _WIN32 |
2752 | # if _WIN32 |
|
|
2753 | evpipe_init (EV_A); |
|
|
2754 | |
2035 | signal (w->signum, ev_sighandler); |
2755 | signal (w->signum, ev_sighandler); |
2036 | #else |
2756 | # else |
2037 | struct sigaction sa; |
2757 | struct sigaction sa; |
|
|
2758 | |
|
|
2759 | evpipe_init (EV_A); |
|
|
2760 | |
2038 | sa.sa_handler = ev_sighandler; |
2761 | sa.sa_handler = ev_sighandler; |
2039 | sigfillset (&sa.sa_mask); |
2762 | sigfillset (&sa.sa_mask); |
2040 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2763 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2041 | sigaction (w->signum, &sa, 0); |
2764 | sigaction (w->signum, &sa, 0); |
|
|
2765 | |
|
|
2766 | sigemptyset (&sa.sa_mask); |
|
|
2767 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2768 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2042 | #endif |
2769 | #endif |
2043 | } |
2770 | } |
|
|
2771 | |
|
|
2772 | EV_FREQUENT_CHECK; |
2044 | } |
2773 | } |
2045 | |
2774 | |
2046 | void noinline |
2775 | void noinline |
2047 | ev_signal_stop (EV_P_ ev_signal *w) |
2776 | ev_signal_stop (EV_P_ ev_signal *w) |
2048 | { |
2777 | { |
2049 | clear_pending (EV_A_ (W)w); |
2778 | clear_pending (EV_A_ (W)w); |
2050 | if (expect_false (!ev_is_active (w))) |
2779 | if (expect_false (!ev_is_active (w))) |
2051 | return; |
2780 | return; |
2052 | |
2781 | |
|
|
2782 | EV_FREQUENT_CHECK; |
|
|
2783 | |
2053 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2784 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2054 | ev_stop (EV_A_ (W)w); |
2785 | ev_stop (EV_A_ (W)w); |
2055 | |
2786 | |
2056 | if (!signals [w->signum - 1].head) |
2787 | if (!signals [w->signum - 1].head) |
|
|
2788 | { |
|
|
2789 | #if EV_MULTIPLICITY |
|
|
2790 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2791 | #endif |
|
|
2792 | #if EV_USE_SIGNALFD |
|
|
2793 | if (sigfd >= 0) |
|
|
2794 | { |
|
|
2795 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2796 | sigdelset (&sigfd_set, w->signum); |
|
|
2797 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2798 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2799 | /*TODO: maybe unblock signal? */ |
|
|
2800 | } |
|
|
2801 | else |
|
|
2802 | #endif |
2057 | signal (w->signum, SIG_DFL); |
2803 | signal (w->signum, SIG_DFL); |
|
|
2804 | } |
|
|
2805 | |
|
|
2806 | EV_FREQUENT_CHECK; |
2058 | } |
2807 | } |
2059 | |
2808 | |
2060 | void |
2809 | void |
2061 | ev_child_start (EV_P_ ev_child *w) |
2810 | ev_child_start (EV_P_ ev_child *w) |
2062 | { |
2811 | { |
2063 | #if EV_MULTIPLICITY |
2812 | #if EV_MULTIPLICITY |
2064 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2813 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2065 | #endif |
2814 | #endif |
2066 | if (expect_false (ev_is_active (w))) |
2815 | if (expect_false (ev_is_active (w))) |
2067 | return; |
2816 | return; |
2068 | |
2817 | |
|
|
2818 | EV_FREQUENT_CHECK; |
|
|
2819 | |
2069 | ev_start (EV_A_ (W)w, 1); |
2820 | ev_start (EV_A_ (W)w, 1); |
2070 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2821 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2822 | |
|
|
2823 | EV_FREQUENT_CHECK; |
2071 | } |
2824 | } |
2072 | |
2825 | |
2073 | void |
2826 | void |
2074 | ev_child_stop (EV_P_ ev_child *w) |
2827 | ev_child_stop (EV_P_ ev_child *w) |
2075 | { |
2828 | { |
2076 | clear_pending (EV_A_ (W)w); |
2829 | clear_pending (EV_A_ (W)w); |
2077 | if (expect_false (!ev_is_active (w))) |
2830 | if (expect_false (!ev_is_active (w))) |
2078 | return; |
2831 | return; |
2079 | |
2832 | |
|
|
2833 | EV_FREQUENT_CHECK; |
|
|
2834 | |
2080 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2835 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2081 | ev_stop (EV_A_ (W)w); |
2836 | ev_stop (EV_A_ (W)w); |
|
|
2837 | |
|
|
2838 | EV_FREQUENT_CHECK; |
2082 | } |
2839 | } |
2083 | |
2840 | |
2084 | #if EV_STAT_ENABLE |
2841 | #if EV_STAT_ENABLE |
2085 | |
2842 | |
2086 | # ifdef _WIN32 |
2843 | # ifdef _WIN32 |
2087 | # undef lstat |
2844 | # undef lstat |
2088 | # define lstat(a,b) _stati64 (a,b) |
2845 | # define lstat(a,b) _stati64 (a,b) |
2089 | # endif |
2846 | # endif |
2090 | |
2847 | |
2091 | #define DEF_STAT_INTERVAL 5.0074891 |
2848 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2849 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2092 | #define MIN_STAT_INTERVAL 0.1074891 |
2850 | #define MIN_STAT_INTERVAL 0.1074891 |
2093 | |
2851 | |
2094 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2852 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2095 | |
2853 | |
2096 | #if EV_USE_INOTIFY |
2854 | #if EV_USE_INOTIFY |
2097 | # define EV_INOTIFY_BUFSIZE 8192 |
2855 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2099 | static void noinline |
2857 | static void noinline |
2100 | infy_add (EV_P_ ev_stat *w) |
2858 | infy_add (EV_P_ ev_stat *w) |
2101 | { |
2859 | { |
2102 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2860 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2103 | |
2861 | |
2104 | if (w->wd < 0) |
2862 | if (w->wd >= 0) |
|
|
2863 | { |
|
|
2864 | struct statfs sfs; |
|
|
2865 | |
|
|
2866 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2867 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2868 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2869 | |
|
|
2870 | if (!fs_2625) |
|
|
2871 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2872 | else if (!statfs (w->path, &sfs) |
|
|
2873 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2874 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2875 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2876 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2877 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2878 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2879 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2880 | else |
|
|
2881 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2105 | { |
2882 | } |
2106 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2883 | else |
|
|
2884 | { |
|
|
2885 | /* can't use inotify, continue to stat */ |
|
|
2886 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2107 | |
2887 | |
2108 | /* monitor some parent directory for speedup hints */ |
2888 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2889 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2890 | /* but an efficiency issue only */ |
2109 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2891 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2110 | { |
2892 | { |
2111 | char path [4096]; |
2893 | char path [4096]; |
2112 | strcpy (path, w->path); |
2894 | strcpy (path, w->path); |
2113 | |
2895 | |
… | |
… | |
2116 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2898 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2117 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2899 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2118 | |
2900 | |
2119 | char *pend = strrchr (path, '/'); |
2901 | char *pend = strrchr (path, '/'); |
2120 | |
2902 | |
2121 | if (!pend) |
2903 | if (!pend || pend == path) |
2122 | break; /* whoops, no '/', complain to your admin */ |
2904 | break; |
2123 | |
2905 | |
2124 | *pend = 0; |
2906 | *pend = 0; |
2125 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2907 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2126 | } |
2908 | } |
2127 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2909 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2128 | } |
2910 | } |
2129 | } |
2911 | } |
2130 | else |
|
|
2131 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2132 | |
2912 | |
2133 | if (w->wd >= 0) |
2913 | if (w->wd >= 0) |
2134 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2914 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2915 | |
|
|
2916 | /* now re-arm timer, if required */ |
|
|
2917 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2918 | ev_timer_again (EV_A_ &w->timer); |
|
|
2919 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2135 | } |
2920 | } |
2136 | |
2921 | |
2137 | static void noinline |
2922 | static void noinline |
2138 | infy_del (EV_P_ ev_stat *w) |
2923 | infy_del (EV_P_ ev_stat *w) |
2139 | { |
2924 | { |
… | |
… | |
2153 | |
2938 | |
2154 | static void noinline |
2939 | static void noinline |
2155 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2940 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2156 | { |
2941 | { |
2157 | if (slot < 0) |
2942 | if (slot < 0) |
2158 | /* overflow, need to check for all hahs slots */ |
2943 | /* overflow, need to check for all hash slots */ |
2159 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2944 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2160 | infy_wd (EV_A_ slot, wd, ev); |
2945 | infy_wd (EV_A_ slot, wd, ev); |
2161 | else |
2946 | else |
2162 | { |
2947 | { |
2163 | WL w_; |
2948 | WL w_; |
… | |
… | |
2169 | |
2954 | |
2170 | if (w->wd == wd || wd == -1) |
2955 | if (w->wd == wd || wd == -1) |
2171 | { |
2956 | { |
2172 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2957 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2173 | { |
2958 | { |
|
|
2959 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2174 | w->wd = -1; |
2960 | w->wd = -1; |
2175 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2961 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2176 | } |
2962 | } |
2177 | |
2963 | |
2178 | stat_timer_cb (EV_A_ &w->timer, 0); |
2964 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2191 | |
2977 | |
2192 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2978 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2193 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2979 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2194 | } |
2980 | } |
2195 | |
2981 | |
2196 | void inline_size |
2982 | inline_size void |
|
|
2983 | check_2625 (EV_P) |
|
|
2984 | { |
|
|
2985 | /* kernels < 2.6.25 are borked |
|
|
2986 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2987 | */ |
|
|
2988 | struct utsname buf; |
|
|
2989 | int major, minor, micro; |
|
|
2990 | |
|
|
2991 | if (uname (&buf)) |
|
|
2992 | return; |
|
|
2993 | |
|
|
2994 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2995 | return; |
|
|
2996 | |
|
|
2997 | if (major < 2 |
|
|
2998 | || (major == 2 && minor < 6) |
|
|
2999 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3000 | return; |
|
|
3001 | |
|
|
3002 | fs_2625 = 1; |
|
|
3003 | } |
|
|
3004 | |
|
|
3005 | inline_size int |
|
|
3006 | infy_newfd (void) |
|
|
3007 | { |
|
|
3008 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3009 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3010 | if (fd >= 0) |
|
|
3011 | return fd; |
|
|
3012 | #endif |
|
|
3013 | return inotify_init (); |
|
|
3014 | } |
|
|
3015 | |
|
|
3016 | inline_size void |
2197 | infy_init (EV_P) |
3017 | infy_init (EV_P) |
2198 | { |
3018 | { |
2199 | if (fs_fd != -2) |
3019 | if (fs_fd != -2) |
2200 | return; |
3020 | return; |
2201 | |
3021 | |
|
|
3022 | fs_fd = -1; |
|
|
3023 | |
|
|
3024 | check_2625 (EV_A); |
|
|
3025 | |
2202 | fs_fd = inotify_init (); |
3026 | fs_fd = infy_newfd (); |
2203 | |
3027 | |
2204 | if (fs_fd >= 0) |
3028 | if (fs_fd >= 0) |
2205 | { |
3029 | { |
|
|
3030 | fd_intern (fs_fd); |
2206 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3031 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2207 | ev_set_priority (&fs_w, EV_MAXPRI); |
3032 | ev_set_priority (&fs_w, EV_MAXPRI); |
2208 | ev_io_start (EV_A_ &fs_w); |
3033 | ev_io_start (EV_A_ &fs_w); |
|
|
3034 | ev_unref (EV_A); |
2209 | } |
3035 | } |
2210 | } |
3036 | } |
2211 | |
3037 | |
2212 | void inline_size |
3038 | inline_size void |
2213 | infy_fork (EV_P) |
3039 | infy_fork (EV_P) |
2214 | { |
3040 | { |
2215 | int slot; |
3041 | int slot; |
2216 | |
3042 | |
2217 | if (fs_fd < 0) |
3043 | if (fs_fd < 0) |
2218 | return; |
3044 | return; |
2219 | |
3045 | |
|
|
3046 | ev_ref (EV_A); |
|
|
3047 | ev_io_stop (EV_A_ &fs_w); |
2220 | close (fs_fd); |
3048 | close (fs_fd); |
2221 | fs_fd = inotify_init (); |
3049 | fs_fd = infy_newfd (); |
|
|
3050 | |
|
|
3051 | if (fs_fd >= 0) |
|
|
3052 | { |
|
|
3053 | fd_intern (fs_fd); |
|
|
3054 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3055 | ev_io_start (EV_A_ &fs_w); |
|
|
3056 | ev_unref (EV_A); |
|
|
3057 | } |
2222 | |
3058 | |
2223 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3059 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2224 | { |
3060 | { |
2225 | WL w_ = fs_hash [slot].head; |
3061 | WL w_ = fs_hash [slot].head; |
2226 | fs_hash [slot].head = 0; |
3062 | fs_hash [slot].head = 0; |
… | |
… | |
2233 | w->wd = -1; |
3069 | w->wd = -1; |
2234 | |
3070 | |
2235 | if (fs_fd >= 0) |
3071 | if (fs_fd >= 0) |
2236 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3072 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2237 | else |
3073 | else |
|
|
3074 | { |
|
|
3075 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3076 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2238 | ev_timer_start (EV_A_ &w->timer); |
3077 | ev_timer_again (EV_A_ &w->timer); |
|
|
3078 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3079 | } |
2239 | } |
3080 | } |
2240 | |
|
|
2241 | } |
3081 | } |
2242 | } |
3082 | } |
2243 | |
3083 | |
|
|
3084 | #endif |
|
|
3085 | |
|
|
3086 | #ifdef _WIN32 |
|
|
3087 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3088 | #else |
|
|
3089 | # define EV_LSTAT(p,b) lstat (p, b) |
2244 | #endif |
3090 | #endif |
2245 | |
3091 | |
2246 | void |
3092 | void |
2247 | ev_stat_stat (EV_P_ ev_stat *w) |
3093 | ev_stat_stat (EV_P_ ev_stat *w) |
2248 | { |
3094 | { |
… | |
… | |
2275 | || w->prev.st_atime != w->attr.st_atime |
3121 | || w->prev.st_atime != w->attr.st_atime |
2276 | || w->prev.st_mtime != w->attr.st_mtime |
3122 | || w->prev.st_mtime != w->attr.st_mtime |
2277 | || w->prev.st_ctime != w->attr.st_ctime |
3123 | || w->prev.st_ctime != w->attr.st_ctime |
2278 | ) { |
3124 | ) { |
2279 | #if EV_USE_INOTIFY |
3125 | #if EV_USE_INOTIFY |
|
|
3126 | if (fs_fd >= 0) |
|
|
3127 | { |
2280 | infy_del (EV_A_ w); |
3128 | infy_del (EV_A_ w); |
2281 | infy_add (EV_A_ w); |
3129 | infy_add (EV_A_ w); |
2282 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3130 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3131 | } |
2283 | #endif |
3132 | #endif |
2284 | |
3133 | |
2285 | ev_feed_event (EV_A_ w, EV_STAT); |
3134 | ev_feed_event (EV_A_ w, EV_STAT); |
2286 | } |
3135 | } |
2287 | } |
3136 | } |
… | |
… | |
2290 | ev_stat_start (EV_P_ ev_stat *w) |
3139 | ev_stat_start (EV_P_ ev_stat *w) |
2291 | { |
3140 | { |
2292 | if (expect_false (ev_is_active (w))) |
3141 | if (expect_false (ev_is_active (w))) |
2293 | return; |
3142 | return; |
2294 | |
3143 | |
2295 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2296 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2297 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2298 | |
|
|
2299 | ev_stat_stat (EV_A_ w); |
3144 | ev_stat_stat (EV_A_ w); |
2300 | |
3145 | |
|
|
3146 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2301 | if (w->interval < MIN_STAT_INTERVAL) |
3147 | w->interval = MIN_STAT_INTERVAL; |
2302 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2303 | |
3148 | |
2304 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3149 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2305 | ev_set_priority (&w->timer, ev_priority (w)); |
3150 | ev_set_priority (&w->timer, ev_priority (w)); |
2306 | |
3151 | |
2307 | #if EV_USE_INOTIFY |
3152 | #if EV_USE_INOTIFY |
2308 | infy_init (EV_A); |
3153 | infy_init (EV_A); |
2309 | |
3154 | |
2310 | if (fs_fd >= 0) |
3155 | if (fs_fd >= 0) |
2311 | infy_add (EV_A_ w); |
3156 | infy_add (EV_A_ w); |
2312 | else |
3157 | else |
2313 | #endif |
3158 | #endif |
|
|
3159 | { |
2314 | ev_timer_start (EV_A_ &w->timer); |
3160 | ev_timer_again (EV_A_ &w->timer); |
|
|
3161 | ev_unref (EV_A); |
|
|
3162 | } |
2315 | |
3163 | |
2316 | ev_start (EV_A_ (W)w, 1); |
3164 | ev_start (EV_A_ (W)w, 1); |
|
|
3165 | |
|
|
3166 | EV_FREQUENT_CHECK; |
2317 | } |
3167 | } |
2318 | |
3168 | |
2319 | void |
3169 | void |
2320 | ev_stat_stop (EV_P_ ev_stat *w) |
3170 | ev_stat_stop (EV_P_ ev_stat *w) |
2321 | { |
3171 | { |
2322 | clear_pending (EV_A_ (W)w); |
3172 | clear_pending (EV_A_ (W)w); |
2323 | if (expect_false (!ev_is_active (w))) |
3173 | if (expect_false (!ev_is_active (w))) |
2324 | return; |
3174 | return; |
2325 | |
3175 | |
|
|
3176 | EV_FREQUENT_CHECK; |
|
|
3177 | |
2326 | #if EV_USE_INOTIFY |
3178 | #if EV_USE_INOTIFY |
2327 | infy_del (EV_A_ w); |
3179 | infy_del (EV_A_ w); |
2328 | #endif |
3180 | #endif |
|
|
3181 | |
|
|
3182 | if (ev_is_active (&w->timer)) |
|
|
3183 | { |
|
|
3184 | ev_ref (EV_A); |
2329 | ev_timer_stop (EV_A_ &w->timer); |
3185 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3186 | } |
2330 | |
3187 | |
2331 | ev_stop (EV_A_ (W)w); |
3188 | ev_stop (EV_A_ (W)w); |
|
|
3189 | |
|
|
3190 | EV_FREQUENT_CHECK; |
2332 | } |
3191 | } |
2333 | #endif |
3192 | #endif |
2334 | |
3193 | |
2335 | #if EV_IDLE_ENABLE |
3194 | #if EV_IDLE_ENABLE |
2336 | void |
3195 | void |
… | |
… | |
2338 | { |
3197 | { |
2339 | if (expect_false (ev_is_active (w))) |
3198 | if (expect_false (ev_is_active (w))) |
2340 | return; |
3199 | return; |
2341 | |
3200 | |
2342 | pri_adjust (EV_A_ (W)w); |
3201 | pri_adjust (EV_A_ (W)w); |
|
|
3202 | |
|
|
3203 | EV_FREQUENT_CHECK; |
2343 | |
3204 | |
2344 | { |
3205 | { |
2345 | int active = ++idlecnt [ABSPRI (w)]; |
3206 | int active = ++idlecnt [ABSPRI (w)]; |
2346 | |
3207 | |
2347 | ++idleall; |
3208 | ++idleall; |
2348 | ev_start (EV_A_ (W)w, active); |
3209 | ev_start (EV_A_ (W)w, active); |
2349 | |
3210 | |
2350 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3211 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2351 | idles [ABSPRI (w)][active - 1] = w; |
3212 | idles [ABSPRI (w)][active - 1] = w; |
2352 | } |
3213 | } |
|
|
3214 | |
|
|
3215 | EV_FREQUENT_CHECK; |
2353 | } |
3216 | } |
2354 | |
3217 | |
2355 | void |
3218 | void |
2356 | ev_idle_stop (EV_P_ ev_idle *w) |
3219 | ev_idle_stop (EV_P_ ev_idle *w) |
2357 | { |
3220 | { |
2358 | clear_pending (EV_A_ (W)w); |
3221 | clear_pending (EV_A_ (W)w); |
2359 | if (expect_false (!ev_is_active (w))) |
3222 | if (expect_false (!ev_is_active (w))) |
2360 | return; |
3223 | return; |
2361 | |
3224 | |
|
|
3225 | EV_FREQUENT_CHECK; |
|
|
3226 | |
2362 | { |
3227 | { |
2363 | int active = ((W)w)->active; |
3228 | int active = ev_active (w); |
2364 | |
3229 | |
2365 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3230 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2366 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3231 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2367 | |
3232 | |
2368 | ev_stop (EV_A_ (W)w); |
3233 | ev_stop (EV_A_ (W)w); |
2369 | --idleall; |
3234 | --idleall; |
2370 | } |
3235 | } |
|
|
3236 | |
|
|
3237 | EV_FREQUENT_CHECK; |
2371 | } |
3238 | } |
2372 | #endif |
3239 | #endif |
2373 | |
3240 | |
2374 | void |
3241 | void |
2375 | ev_prepare_start (EV_P_ ev_prepare *w) |
3242 | ev_prepare_start (EV_P_ ev_prepare *w) |
2376 | { |
3243 | { |
2377 | if (expect_false (ev_is_active (w))) |
3244 | if (expect_false (ev_is_active (w))) |
2378 | return; |
3245 | return; |
|
|
3246 | |
|
|
3247 | EV_FREQUENT_CHECK; |
2379 | |
3248 | |
2380 | ev_start (EV_A_ (W)w, ++preparecnt); |
3249 | ev_start (EV_A_ (W)w, ++preparecnt); |
2381 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3250 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2382 | prepares [preparecnt - 1] = w; |
3251 | prepares [preparecnt - 1] = w; |
|
|
3252 | |
|
|
3253 | EV_FREQUENT_CHECK; |
2383 | } |
3254 | } |
2384 | |
3255 | |
2385 | void |
3256 | void |
2386 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3257 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2387 | { |
3258 | { |
2388 | clear_pending (EV_A_ (W)w); |
3259 | clear_pending (EV_A_ (W)w); |
2389 | if (expect_false (!ev_is_active (w))) |
3260 | if (expect_false (!ev_is_active (w))) |
2390 | return; |
3261 | return; |
2391 | |
3262 | |
|
|
3263 | EV_FREQUENT_CHECK; |
|
|
3264 | |
2392 | { |
3265 | { |
2393 | int active = ((W)w)->active; |
3266 | int active = ev_active (w); |
|
|
3267 | |
2394 | prepares [active - 1] = prepares [--preparecnt]; |
3268 | prepares [active - 1] = prepares [--preparecnt]; |
2395 | ((W)prepares [active - 1])->active = active; |
3269 | ev_active (prepares [active - 1]) = active; |
2396 | } |
3270 | } |
2397 | |
3271 | |
2398 | ev_stop (EV_A_ (W)w); |
3272 | ev_stop (EV_A_ (W)w); |
|
|
3273 | |
|
|
3274 | EV_FREQUENT_CHECK; |
2399 | } |
3275 | } |
2400 | |
3276 | |
2401 | void |
3277 | void |
2402 | ev_check_start (EV_P_ ev_check *w) |
3278 | ev_check_start (EV_P_ ev_check *w) |
2403 | { |
3279 | { |
2404 | if (expect_false (ev_is_active (w))) |
3280 | if (expect_false (ev_is_active (w))) |
2405 | return; |
3281 | return; |
|
|
3282 | |
|
|
3283 | EV_FREQUENT_CHECK; |
2406 | |
3284 | |
2407 | ev_start (EV_A_ (W)w, ++checkcnt); |
3285 | ev_start (EV_A_ (W)w, ++checkcnt); |
2408 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3286 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2409 | checks [checkcnt - 1] = w; |
3287 | checks [checkcnt - 1] = w; |
|
|
3288 | |
|
|
3289 | EV_FREQUENT_CHECK; |
2410 | } |
3290 | } |
2411 | |
3291 | |
2412 | void |
3292 | void |
2413 | ev_check_stop (EV_P_ ev_check *w) |
3293 | ev_check_stop (EV_P_ ev_check *w) |
2414 | { |
3294 | { |
2415 | clear_pending (EV_A_ (W)w); |
3295 | clear_pending (EV_A_ (W)w); |
2416 | if (expect_false (!ev_is_active (w))) |
3296 | if (expect_false (!ev_is_active (w))) |
2417 | return; |
3297 | return; |
2418 | |
3298 | |
|
|
3299 | EV_FREQUENT_CHECK; |
|
|
3300 | |
2419 | { |
3301 | { |
2420 | int active = ((W)w)->active; |
3302 | int active = ev_active (w); |
|
|
3303 | |
2421 | checks [active - 1] = checks [--checkcnt]; |
3304 | checks [active - 1] = checks [--checkcnt]; |
2422 | ((W)checks [active - 1])->active = active; |
3305 | ev_active (checks [active - 1]) = active; |
2423 | } |
3306 | } |
2424 | |
3307 | |
2425 | ev_stop (EV_A_ (W)w); |
3308 | ev_stop (EV_A_ (W)w); |
|
|
3309 | |
|
|
3310 | EV_FREQUENT_CHECK; |
2426 | } |
3311 | } |
2427 | |
3312 | |
2428 | #if EV_EMBED_ENABLE |
3313 | #if EV_EMBED_ENABLE |
2429 | void noinline |
3314 | void noinline |
2430 | ev_embed_sweep (EV_P_ ev_embed *w) |
3315 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3332 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2448 | { |
3333 | { |
2449 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3334 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2450 | |
3335 | |
2451 | { |
3336 | { |
2452 | struct ev_loop *loop = w->other; |
3337 | EV_P = w->other; |
2453 | |
3338 | |
2454 | while (fdchangecnt) |
3339 | while (fdchangecnt) |
2455 | { |
3340 | { |
2456 | fd_reify (EV_A); |
3341 | fd_reify (EV_A); |
2457 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3342 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2458 | } |
3343 | } |
2459 | } |
3344 | } |
2460 | } |
3345 | } |
2461 | |
3346 | |
|
|
3347 | static void |
|
|
3348 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3349 | { |
|
|
3350 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3351 | |
|
|
3352 | ev_embed_stop (EV_A_ w); |
|
|
3353 | |
|
|
3354 | { |
|
|
3355 | EV_P = w->other; |
|
|
3356 | |
|
|
3357 | ev_loop_fork (EV_A); |
|
|
3358 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3359 | } |
|
|
3360 | |
|
|
3361 | ev_embed_start (EV_A_ w); |
|
|
3362 | } |
|
|
3363 | |
2462 | #if 0 |
3364 | #if 0 |
2463 | static void |
3365 | static void |
2464 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3366 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2465 | { |
3367 | { |
2466 | ev_idle_stop (EV_A_ idle); |
3368 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2472 | { |
3374 | { |
2473 | if (expect_false (ev_is_active (w))) |
3375 | if (expect_false (ev_is_active (w))) |
2474 | return; |
3376 | return; |
2475 | |
3377 | |
2476 | { |
3378 | { |
2477 | struct ev_loop *loop = w->other; |
3379 | EV_P = w->other; |
2478 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3380 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2479 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3381 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2480 | } |
3382 | } |
|
|
3383 | |
|
|
3384 | EV_FREQUENT_CHECK; |
2481 | |
3385 | |
2482 | ev_set_priority (&w->io, ev_priority (w)); |
3386 | ev_set_priority (&w->io, ev_priority (w)); |
2483 | ev_io_start (EV_A_ &w->io); |
3387 | ev_io_start (EV_A_ &w->io); |
2484 | |
3388 | |
2485 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3389 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2486 | ev_set_priority (&w->prepare, EV_MINPRI); |
3390 | ev_set_priority (&w->prepare, EV_MINPRI); |
2487 | ev_prepare_start (EV_A_ &w->prepare); |
3391 | ev_prepare_start (EV_A_ &w->prepare); |
2488 | |
3392 | |
|
|
3393 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3394 | ev_fork_start (EV_A_ &w->fork); |
|
|
3395 | |
2489 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3396 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2490 | |
3397 | |
2491 | ev_start (EV_A_ (W)w, 1); |
3398 | ev_start (EV_A_ (W)w, 1); |
|
|
3399 | |
|
|
3400 | EV_FREQUENT_CHECK; |
2492 | } |
3401 | } |
2493 | |
3402 | |
2494 | void |
3403 | void |
2495 | ev_embed_stop (EV_P_ ev_embed *w) |
3404 | ev_embed_stop (EV_P_ ev_embed *w) |
2496 | { |
3405 | { |
2497 | clear_pending (EV_A_ (W)w); |
3406 | clear_pending (EV_A_ (W)w); |
2498 | if (expect_false (!ev_is_active (w))) |
3407 | if (expect_false (!ev_is_active (w))) |
2499 | return; |
3408 | return; |
2500 | |
3409 | |
|
|
3410 | EV_FREQUENT_CHECK; |
|
|
3411 | |
2501 | ev_io_stop (EV_A_ &w->io); |
3412 | ev_io_stop (EV_A_ &w->io); |
2502 | ev_prepare_stop (EV_A_ &w->prepare); |
3413 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3414 | ev_fork_stop (EV_A_ &w->fork); |
2503 | |
3415 | |
2504 | ev_stop (EV_A_ (W)w); |
3416 | EV_FREQUENT_CHECK; |
2505 | } |
3417 | } |
2506 | #endif |
3418 | #endif |
2507 | |
3419 | |
2508 | #if EV_FORK_ENABLE |
3420 | #if EV_FORK_ENABLE |
2509 | void |
3421 | void |
2510 | ev_fork_start (EV_P_ ev_fork *w) |
3422 | ev_fork_start (EV_P_ ev_fork *w) |
2511 | { |
3423 | { |
2512 | if (expect_false (ev_is_active (w))) |
3424 | if (expect_false (ev_is_active (w))) |
2513 | return; |
3425 | return; |
|
|
3426 | |
|
|
3427 | EV_FREQUENT_CHECK; |
2514 | |
3428 | |
2515 | ev_start (EV_A_ (W)w, ++forkcnt); |
3429 | ev_start (EV_A_ (W)w, ++forkcnt); |
2516 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3430 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2517 | forks [forkcnt - 1] = w; |
3431 | forks [forkcnt - 1] = w; |
|
|
3432 | |
|
|
3433 | EV_FREQUENT_CHECK; |
2518 | } |
3434 | } |
2519 | |
3435 | |
2520 | void |
3436 | void |
2521 | ev_fork_stop (EV_P_ ev_fork *w) |
3437 | ev_fork_stop (EV_P_ ev_fork *w) |
2522 | { |
3438 | { |
2523 | clear_pending (EV_A_ (W)w); |
3439 | clear_pending (EV_A_ (W)w); |
2524 | if (expect_false (!ev_is_active (w))) |
3440 | if (expect_false (!ev_is_active (w))) |
2525 | return; |
3441 | return; |
2526 | |
3442 | |
|
|
3443 | EV_FREQUENT_CHECK; |
|
|
3444 | |
2527 | { |
3445 | { |
2528 | int active = ((W)w)->active; |
3446 | int active = ev_active (w); |
|
|
3447 | |
2529 | forks [active - 1] = forks [--forkcnt]; |
3448 | forks [active - 1] = forks [--forkcnt]; |
2530 | ((W)forks [active - 1])->active = active; |
3449 | ev_active (forks [active - 1]) = active; |
2531 | } |
3450 | } |
2532 | |
3451 | |
2533 | ev_stop (EV_A_ (W)w); |
3452 | ev_stop (EV_A_ (W)w); |
|
|
3453 | |
|
|
3454 | EV_FREQUENT_CHECK; |
2534 | } |
3455 | } |
2535 | #endif |
3456 | #endif |
2536 | |
3457 | |
2537 | #if EV_ASYNC_ENABLE |
3458 | #if EV_ASYNC_ENABLE |
2538 | void |
3459 | void |
… | |
… | |
2540 | { |
3461 | { |
2541 | if (expect_false (ev_is_active (w))) |
3462 | if (expect_false (ev_is_active (w))) |
2542 | return; |
3463 | return; |
2543 | |
3464 | |
2544 | evpipe_init (EV_A); |
3465 | evpipe_init (EV_A); |
|
|
3466 | |
|
|
3467 | EV_FREQUENT_CHECK; |
2545 | |
3468 | |
2546 | ev_start (EV_A_ (W)w, ++asynccnt); |
3469 | ev_start (EV_A_ (W)w, ++asynccnt); |
2547 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3470 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2548 | asyncs [asynccnt - 1] = w; |
3471 | asyncs [asynccnt - 1] = w; |
|
|
3472 | |
|
|
3473 | EV_FREQUENT_CHECK; |
2549 | } |
3474 | } |
2550 | |
3475 | |
2551 | void |
3476 | void |
2552 | ev_async_stop (EV_P_ ev_async *w) |
3477 | ev_async_stop (EV_P_ ev_async *w) |
2553 | { |
3478 | { |
2554 | clear_pending (EV_A_ (W)w); |
3479 | clear_pending (EV_A_ (W)w); |
2555 | if (expect_false (!ev_is_active (w))) |
3480 | if (expect_false (!ev_is_active (w))) |
2556 | return; |
3481 | return; |
2557 | |
3482 | |
|
|
3483 | EV_FREQUENT_CHECK; |
|
|
3484 | |
2558 | { |
3485 | { |
2559 | int active = ((W)w)->active; |
3486 | int active = ev_active (w); |
|
|
3487 | |
2560 | asyncs [active - 1] = asyncs [--asynccnt]; |
3488 | asyncs [active - 1] = asyncs [--asynccnt]; |
2561 | ((W)asyncs [active - 1])->active = active; |
3489 | ev_active (asyncs [active - 1]) = active; |
2562 | } |
3490 | } |
2563 | |
3491 | |
2564 | ev_stop (EV_A_ (W)w); |
3492 | ev_stop (EV_A_ (W)w); |
|
|
3493 | |
|
|
3494 | EV_FREQUENT_CHECK; |
2565 | } |
3495 | } |
2566 | |
3496 | |
2567 | void |
3497 | void |
2568 | ev_async_send (EV_P_ ev_async *w) |
3498 | ev_async_send (EV_P_ ev_async *w) |
2569 | { |
3499 | { |
2570 | w->sent = 1; |
3500 | w->sent = 1; |
2571 | evpipe_write (EV_A_ &gotasync); |
3501 | evpipe_write (EV_A_ &async_pending); |
2572 | } |
3502 | } |
2573 | #endif |
3503 | #endif |
2574 | |
3504 | |
2575 | /*****************************************************************************/ |
3505 | /*****************************************************************************/ |
2576 | |
3506 | |
… | |
… | |
2586 | once_cb (EV_P_ struct ev_once *once, int revents) |
3516 | once_cb (EV_P_ struct ev_once *once, int revents) |
2587 | { |
3517 | { |
2588 | void (*cb)(int revents, void *arg) = once->cb; |
3518 | void (*cb)(int revents, void *arg) = once->cb; |
2589 | void *arg = once->arg; |
3519 | void *arg = once->arg; |
2590 | |
3520 | |
2591 | ev_io_stop (EV_A_ &once->io); |
3521 | ev_io_stop (EV_A_ &once->io); |
2592 | ev_timer_stop (EV_A_ &once->to); |
3522 | ev_timer_stop (EV_A_ &once->to); |
2593 | ev_free (once); |
3523 | ev_free (once); |
2594 | |
3524 | |
2595 | cb (revents, arg); |
3525 | cb (revents, arg); |
2596 | } |
3526 | } |
2597 | |
3527 | |
2598 | static void |
3528 | static void |
2599 | once_cb_io (EV_P_ ev_io *w, int revents) |
3529 | once_cb_io (EV_P_ ev_io *w, int revents) |
2600 | { |
3530 | { |
2601 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3531 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3532 | |
|
|
3533 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2602 | } |
3534 | } |
2603 | |
3535 | |
2604 | static void |
3536 | static void |
2605 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3537 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2606 | { |
3538 | { |
2607 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3539 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3540 | |
|
|
3541 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2608 | } |
3542 | } |
2609 | |
3543 | |
2610 | void |
3544 | void |
2611 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3545 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2612 | { |
3546 | { |
… | |
… | |
2634 | ev_timer_set (&once->to, timeout, 0.); |
3568 | ev_timer_set (&once->to, timeout, 0.); |
2635 | ev_timer_start (EV_A_ &once->to); |
3569 | ev_timer_start (EV_A_ &once->to); |
2636 | } |
3570 | } |
2637 | } |
3571 | } |
2638 | |
3572 | |
|
|
3573 | /*****************************************************************************/ |
|
|
3574 | |
|
|
3575 | #if EV_WALK_ENABLE |
|
|
3576 | void |
|
|
3577 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3578 | { |
|
|
3579 | int i, j; |
|
|
3580 | ev_watcher_list *wl, *wn; |
|
|
3581 | |
|
|
3582 | if (types & (EV_IO | EV_EMBED)) |
|
|
3583 | for (i = 0; i < anfdmax; ++i) |
|
|
3584 | for (wl = anfds [i].head; wl; ) |
|
|
3585 | { |
|
|
3586 | wn = wl->next; |
|
|
3587 | |
|
|
3588 | #if EV_EMBED_ENABLE |
|
|
3589 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3590 | { |
|
|
3591 | if (types & EV_EMBED) |
|
|
3592 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3593 | } |
|
|
3594 | else |
|
|
3595 | #endif |
|
|
3596 | #if EV_USE_INOTIFY |
|
|
3597 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3598 | ; |
|
|
3599 | else |
|
|
3600 | #endif |
|
|
3601 | if ((ev_io *)wl != &pipe_w) |
|
|
3602 | if (types & EV_IO) |
|
|
3603 | cb (EV_A_ EV_IO, wl); |
|
|
3604 | |
|
|
3605 | wl = wn; |
|
|
3606 | } |
|
|
3607 | |
|
|
3608 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3609 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3610 | #if EV_STAT_ENABLE |
|
|
3611 | /*TODO: timer is not always active*/ |
|
|
3612 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3613 | { |
|
|
3614 | if (types & EV_STAT) |
|
|
3615 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3616 | } |
|
|
3617 | else |
|
|
3618 | #endif |
|
|
3619 | if (types & EV_TIMER) |
|
|
3620 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3621 | |
|
|
3622 | #if EV_PERIODIC_ENABLE |
|
|
3623 | if (types & EV_PERIODIC) |
|
|
3624 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3625 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3626 | #endif |
|
|
3627 | |
|
|
3628 | #if EV_IDLE_ENABLE |
|
|
3629 | if (types & EV_IDLE) |
|
|
3630 | for (j = NUMPRI; i--; ) |
|
|
3631 | for (i = idlecnt [j]; i--; ) |
|
|
3632 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3633 | #endif |
|
|
3634 | |
|
|
3635 | #if EV_FORK_ENABLE |
|
|
3636 | if (types & EV_FORK) |
|
|
3637 | for (i = forkcnt; i--; ) |
|
|
3638 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3639 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3640 | #endif |
|
|
3641 | |
|
|
3642 | #if EV_ASYNC_ENABLE |
|
|
3643 | if (types & EV_ASYNC) |
|
|
3644 | for (i = asynccnt; i--; ) |
|
|
3645 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3646 | #endif |
|
|
3647 | |
|
|
3648 | if (types & EV_PREPARE) |
|
|
3649 | for (i = preparecnt; i--; ) |
|
|
3650 | #if EV_EMBED_ENABLE |
|
|
3651 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3652 | #endif |
|
|
3653 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3654 | |
|
|
3655 | if (types & EV_CHECK) |
|
|
3656 | for (i = checkcnt; i--; ) |
|
|
3657 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3658 | |
|
|
3659 | if (types & EV_SIGNAL) |
|
|
3660 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3661 | for (wl = signals [i].head; wl; ) |
|
|
3662 | { |
|
|
3663 | wn = wl->next; |
|
|
3664 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3665 | wl = wn; |
|
|
3666 | } |
|
|
3667 | |
|
|
3668 | if (types & EV_CHILD) |
|
|
3669 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3670 | for (wl = childs [i]; wl; ) |
|
|
3671 | { |
|
|
3672 | wn = wl->next; |
|
|
3673 | cb (EV_A_ EV_CHILD, wl); |
|
|
3674 | wl = wn; |
|
|
3675 | } |
|
|
3676 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3677 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3678 | } |
|
|
3679 | #endif |
|
|
3680 | |
2639 | #if EV_MULTIPLICITY |
3681 | #if EV_MULTIPLICITY |
2640 | #include "ev_wrap.h" |
3682 | #include "ev_wrap.h" |
2641 | #endif |
3683 | #endif |
2642 | |
3684 | |
2643 | #ifdef __cplusplus |
3685 | #ifdef __cplusplus |